Faster CPU ... Faster memory swapping so we could really fly through and an even larger capacity battery.

I think the option of a SIM slot makes a lot of sense as well for dedicated mobile access without a phone... Wimax is interesting, but until it actually rolls out I don't care very much. I can get an always on connection now with my phone if I want -- it's not WiMax speed, but it gives me my email, web, IM etc.

WiMax is a 2H 2008 roll now with the Sprint / Clearwire team. at least beyond the existing pilots