It pains me to do this. But I see no other alternative.
This is the email exchange which leads me to conclude that it's not safe to deal with Revanche LLC:
First email I wrote to Kurt 5th July 2008:
Hi,
I´ve found two very usefull products on your webpage, and I´d like to know if they are still available:
*RAKA Keyboard adapter
*RAMA Mouse adapter
If they are, I´d really like to place an order for these two items, preferably by paying with PayPal (I´d happily pay any extra transaction fees incurred by PayPal)
My location is 0660 Oslo, Norway (for calculation of shipping charges). Also, are there any special considerations to make since I´m in Norway and would like to use a keyboard with norwegian layout.
Kurt to Arnljot 8th of July 2008:
Dear Arnljot,
Sorry we missed your call. Most of the staff is off this week. We have both the RAMA and RAKA .
The problem we have is the new chips don't work with the old hex code and the original source for the European chips was lost during a succesion of hard drive failures. If you would be kind enough to send us a Norwegian keyboard we can test our new european source code with your keyboard. We would reduce the price of the keyboard adapter to $10.00 and install any custom macros you want. We would then return your keyboard with your order. Shipping to Norway $37.50 +RAMA 38.00
+RAKA $10 = $85.50 Delivered.
Thank You.
Sincerely,
Arnljot to Kurt 8th of July 2008:
Wow,
Thats a good offer. I'll go and get a keyboard this week and ship it to you. It'll be cheaper (postage wise) that you just keep the keyboard.
Is the product also compatible with keyboards that connect via USB-2-PS2 dongle, or does it have to be a pure PS2 keyboard?
Can I then pay with PayPal?
If we agree on the terms (PayPal $85.50 + Norwegian keyboard), I will send one to you as soon as you give the go-ahead.
I assume I'll use the address on your homepage.
Kurt to Arnljot 8th July 2008
Wow,
Thats a good offer. I'll go and get a keyboard this week and ship it to you. It'll be cheaper (postage wise) that you just keep the keyboard.
Okay that means postage is now $28.00 for Express which is 5 days or $15 for priority 6 - 10 days.
Is the product also compatible with keyboards that connect via USB-2-PS2 dongle, or does it have to be a pure PS2 keyboard?
Yes it works fine with USB 2 PS2 dongles that is a function of the keyboard not the adapter most chips used in keyboards is the standard dual
Can I then pay with PayPal?
Yes the address is revanchellc@revanchellc.com
If we agree on the terms (PayPal $85.50 + Norwegian keyboard), I will send one to you as soon as you give the go-ahead.
Yes but you now need to figure in the cheaper postage
$76.00 plus keyboard. for express
or $63.00 for Priority
I assume I'll use the address on your homepage.
Correct
Revanche LLC.
59 Central Ave. Bldg 9
Farmingdale, New York 11735-6902
USA
Sincerely,
Kurt
Arnljot to Kurth 9th of July 2008
Okay that means postage is now $28.00 for Express which is 5 days or $15 for priority 6 - 10 days.
I will go for the priority option. I'm leaving for vaccation next week, and will not be back until early august.
Yes it works fine with USB 2 PS2 dongles that is a function of the keyboard not the adapter most chips used in keyboards is the standard dual
Goody, I sent a keyboard to you today. It ended up being sent registered, as oddly enough that was the cheapest. It's not been registered in the database yet, but I guess it'll pop up one of these days:
http://62.148.47.152/posten/PagesKM/KMSporingInternett.aspx?ShipmentNumber=RR136093727NO&Language=English
Tracking number: RR136093727NO
Can I then pay with PayPal?
Yes the address is revanchellc@revanchellc.com
Good, I'll send the money now then.
If we agree on the terms (PayPal $85.50 + Norwegian keyboard), I will send one to you as soon as you give the go-ahead.
Yes but you now need to figure in the cheaper postage
$76.00 plus keyboard. for express
or $63.00 for Priority
It'll be $63.00 
You'll have to inform me about the macro config possabilities so that I can decide on that 
Kind regards,
Arnljot to Kurt 15th of July 2008
Hi,
FYI, I can now see that the tracking on the keyboard is updated. Can you also confirm that you have received the payment of $63 as we agreed and that we're on track?
Kind regards,
Kurt to Arnljot 15th of July 2008
Dear Arnljot,
Important question for which Amiga do you want an adapter for, A2000/3000/4000/CD32, A1200/A600 or A500 or A1000
Sincerely,
Kurt
Arnljot to Kurt 15th of July 2008
Hi Kurt!
I will be using the adapter with my Amiga 4000 machine.
Kind regards,
Arnljot to Kurt 1st of August 2008
Hi Kurt,
I can now see that you´ve received the keyboard. Does it work to yor satisfaction?
Kind regads,
Arnljot
Kurt to Arnljot 6th of August 2008
Dear Arnljot
Yes we received the keyboard it will work fine. the only issue I have is it has only one windows key. I normally map the windows keys to the left and right Amiga keys. This keyboard has no right Amiga I can map the menu key to right Amiga Key for you. I normally map the menu key to right Amiga M combo so one button swaps the screens. I find it to be an indispensable function once you get used to it it is fantastic on the Amiga. F11 is copy and f12 is paste. Some programmers prefer cut over copy. Attached is the normal instruction sheet. I map the extra function keys to any two button Amiga combos so you can map that key to special functions in any program or you can use Fkey to have it open your browser or email programs or run arexx scripts. If you want any of those keys mapped to something special that your program uses let me know.
Sincerely,
Kurt
Arnljot to Kurt 6th of August 2008
Hi Kurt,
Please map the menu key to right Amiga key. I will just make another mapping in software for R-Amiga-M.
Also, I assume that with the following setup:
Keyboard - KVM - Adapter - Amiga
That Sroll-Lock key combos to switch computer still will work?
Kind regards,
Arnljot
Kurt to Arnljot 8th of August 2008
Dear Arnljot,
"That Sroll-Lock key combos to switch computer still will work?"
Yes as that how I use the adapter now on a Belkin 4 port KVM.
Both the keyboard and mouse adapter are designed to work on a KWM as I have owned and tested many KVMs with them and up to now all have worked perfectly.
They should go out on Monday baring any mishap.
Sincerely,
Kurt
Arnljot to Kurt 23rd of August
Hi,
Did you send it out with a tracking number?
I look forward to using this little wonder 
Kind regards,
Arnljot
Kurt to Arnljot 25th of August
Dear Arnljot,
Sorry about that it is done I just need a chance to run it for a few day's to make sure some nasty bug doesn't surface.
This is redone code on a new chip I just want to make really sure before I send it out and I get a it locks up and you suck letter.
Sincerely,
Kurt
Arnljot to Kurt 25th of August 2008
Hi, Kurt
That's okay, glad to hear that you're testing it properly.
Keep me posted on the progress and when you estimate to be done with the stability testing.
Kind regards,
Arnljot to Kurt 25th of September
Ki, Kurt
How is testing going?
Much more testing to do now on the adapters?
Kind regards,
Kurt to Arnljot 25th of September 2008
Dear Arnljot,
I was supposed to email you the other day. We have not forgotten you we had some major and minor disasters in the last month that delayed things. My A1200 I use for testing and programing classic stuff melted down. Literally melted a short in one of the Chip Ram modules melted the traces off the motherboard. Combined with other things like the companies main system dieing. A minor flood after which happened after the computer malfunctions and other unrelated problems. I got a new A1200 board I need to install and test before I get back.
Sincerely,
Kurt
Arnljot to Kurt 30th of September 2008
Hi, Kurt
I'm sorry to hear about your problems. I hope that you'll be able to sort them out. Please keep me posted on the progress on testing the adapter.
Kind regards,
Arnljot to Kurt 27th of October 2008
Hi, Kurt
Have you been able to sort out your machine troubbles and resume testing? How is the progress coming along now?
Regards,
Arnljot to Kurt 8th of November 2008
Hi,
I take your silence as a sign that you have no intension of delivering. In a mail the 8th of August you said that it would go out on monday the 11th, It´s now more than three months later, and all you have to offer is silence.
I will await an answer from you until tuesday monring my local time here in Norway. If I haven´t heard anything definite until then, I´ll have no choice but to post warnings to other users about you on amigaworld.net and amiga.org
Regards,
Arnljot
PS: This is the "you suck" letter.
Kurt to Arnljot 10th of November 2008
Dear Arnljot,
Thats my fault sorry. To answer your question Yes we have every intention on delivering your product.
In redoing the code I started adding features in to take advantage of the new features and memory in today's chips.
I will send you out an international using the old design and then forward you one of the new ones when it is done.
Sincerley,
Kurt
Arnljot to Kurt 15th of November 2008
I´ve been thinking about it now for a few days.
Your terms are okay, but I´d like to remind you that our agreement is also for a mouse adapter.
So please ship me the items and provide me with a tracking number so that I can see that it´s sent.
Regards,
Arnljot
Kurt to Arnljot 18th of November
Dear Arnljot,
Roger that. We will keep you advised.
Last email exchanged, Arnljot to Kurt 18th of November 2008
Good,
Though please give me a timeframe for when you will post the first shipment to me.
Regards,
As you can see from the trend here. All communication is on my initiative. It seems like Kurt of Revanche LLC would rather that this whole thing was forgotten and gone.
Even though he said he'd ship me a unit the 10th of November, and I specifically stated that I wanted a shipping number. All these requests have been met with silence to that point.
Also, notice that the device was done the 25th of August and just a few more days of testing was needed. No mention of this later, only that he decided to start all over again.
I don't find his communication trust worthy, and 10 days of ignoring my emails after I have asked him to deliver and keep me posted is alarming.
I consider the $63 I paid as lost
(PayPal the 9th of July Currency Conversion: 330.24 NOK = $63.00 USD)
And the money spent on a Norwegian keyboard (NOK 359 Logitech EX 110).
And also the money I spent to send the keyboard to USA by registered mail. Another 200 to 300 NOK...
It's a shame.
I really think that at one point this deal was over board. But something has happended which makes him unable to fullfill his end, and instead of saying so out right he's been stringing me along.
I feel cheated.