> You'll end up with something somewhere between the SAM460 and X5000.

1.8 GHz e6500 (with AltiVec) vs. 2.2 GHz e5500 (without AltiVec) is an interesting comparison.

> 1 or 2GB soldered

I think 2 GiB is the reasonable minimum. 4 GiB would be nice (also for Linux use).