I seriously doubt they have anything worth showing. The only seriously redeeming feature a NG Amiga system that would impress anyone would be an absurdly fast boot time. Press the button, wait a couple of seconds and bam, there's the desktop. It's not like there's a whole hell of a lot going on in there. If they could show that, they would have.
All these excuses about it being a debug build responsible for the machine running like utter crap is just lame. There must be some really atrocious code flung together to get this running on the pa6t.
If you've read up on some of the things they're planing there will be things to show. But really, what is there to show in AOS 3.x? Or in MOS? Or AROS for that matter, it boots fast...
I don't get more excited over the other options since they don't bring anything else from what AOS 4 got. AOS 3 got even less new programs and MOS... will there be a new 3D driver system? Printer drivers? Will you ever be able to run it on new hardware again? Even though cheap macs are nice in a way they will only feal modern for so long. They already lacks a HDMI port and the graphics cards are old. They will only be cheap and fast for a couple of years. The next Amiga (or amigalike) system that I'll buy got to be able to play a fullhd movie on my TV being connected with a HDMI cable and from I've read the X1000 will be able to do that. I know that my PowerMAC never will. I don't know about AROS, maybe it handles it but it got a long way to go still IMO.
The goal for me is to be able to do as much as possible with the Amiga to use the PC less since I enjoy AOS more. I don't know what goals others have but since the recent braging about OWB for MOS being able to display Youtube clips in a nice way it seems that it's the goal for MOS users too. An old powermac won't do for long though. The strong reactions that will come from this comment is because you know it's trues... sad but true.
The X1000 is the most exciting amiga ng project at the moment even if it's far from the original Amiga.