Am after a small and light Notebook ( travelling around Oz on a motorbike ) and am interested in the 700m with the 12.1" screen. Have a few questions on the upgrade options and to be more specific are they worth it.

1/ 1.6 to 1.8 processor Much of an improvement ?

2/ Pro/Wireless 2200 v 2915 Whats the difference ? Better performance or reliability ?

3/ 4 cell v 8 cell battery. I assume that 8cell is a lot heavier but at what battery life ?

Any comments on the 700m ?