Very nice news indeed, but I will not buy it for the reasons described below:
1. Why only 512MB max? I think that is the weakest point of SAM440ep. I don't like these limitations.
2. Why ONE PCI Slot? AmigaOS 4.1 needs an ATI Radeon 9250 128MB, as being recommended. Of course the on board ATI Mobility 64MB is not of any use then. So I'm full with PCI slots. I need another PCI slot for my Netgear Wireless PCI card, where I can put it then?

I'm not telling about a SoundBlaster card either, because I want to tell you only the stuff that I really need.
For me SAM440 is a limited motherboard (like Efika). I used to have non-limited motherboards, at least not with max 512MB of RAM or just one PCI slot.
What you will do if you want to expand it then? You will buy the new SAM board in the future which will have 2GB max RAM and 3 PCI Slots? :-o