Really? I thought the speed limitation was in the e-ink technology. The iLiad, for example caches the next page of pdf files, so when it comes to changing pages, processing power should have little to do with it.
Also, the plastic logic screen is much bigger than the iLiad screen, so the faster speed is doubly surprising.
I use my iLiad a lot and rate it highly, but i do find myself starting to wonder when we will have higher contrast devices, with colour, and instantaneous screen refreshes...
I know, dream on.