Well, I love ITX boards (i'm a sucker for gadgets), and what better than one with a PowerPC onboard that will run AmigaOS? Ahhh... lovely... :-D
Its supposed to be out early next year, AFAIK. Check out mini-itx.com for info about cases etc., although there are cheaper places to get ITX cases.
The Lite, being a very small motherboard, has onboard Radeon graphics. The proposed spec for the final model is supposed to include firewire and gigabit ethernet. These are not on the prototype currently being shown.
I guess the best advice is "wait and see". Looks very promising indeed, though!