Or maybe an accelerator card that has video, CPU, an SD card, memory, PS2 Keyboard/Mouse, and joystick ports. Since the only think left from the original Amiga is the power supply, maybe we could get that running from a normal power connector. 
And then you'd essentially have a Natami.

Seriously though, we have considered putting our new N68050/N68070 architecture on an accelerator card. It would be quite expensive though - but it seems like a lot of Amigans put more value in their wedge cases than the hardware thats in it, so it might sell, even though it would be a much better price/performance deal to get a full Natami board.