Are there many differences between the i3, i5 & i7 mobile processors? I am looking at performance and battery life. Does a i7 chew through more power than a i5? I see the thermal output is the same ...

I've written quite a bit about Intel's upcoming Core i5 "Lynnfield" processors which are cut-down versions of the Core i7 silicon powerhouse. Core i5 has been in the pipeline for a while now, and has ...