Better than a 360 or a PS3?
LOL! ... But i have to say that's daydreaming.
To build a hi-tech machine is very expensive, it's not just a matter of mixing ingredients for a magical recipe that would work or not.
However as it has been said, it would be farging expensive. Nobody would aim for such a project with no name, no brand, no games and no rentability.
The X1000 or the Natami should aim to be 100% compatible and with enouth power to replace our PC's for daily use. That means, surf the web, write emails, some office stuff, watch videos, listen some music and have enough power to emulate 16bit and luckilly some 32bit systems.
And of course for an "affordable" price. That's it. Suggesting a Hi-Tech rampage would not give any profit to the Amiga community, because it's nonsense. We're not in the top league anymore. Just be sure we survive for useful but esential use. That's it, and that would be a promising future, because we don't need super-megaton-hi-tech 3D graphics to have fun or do our daily stuff. We already have PS3 or 360 for that.