I would say the upsides are:
Good keyboard layout
and the downsides are
Lack of internal optical
ULV Pentium M
I have no idea what the battery life is.
For me, the 700m, with the same screen, internal optical, regular Pentium M, and available extended battery which takes the battery life to 6 hours and beyond, is a better choice, even though it is about 2 lbs heavier and a little bit chunkier.
Any thoughts on this notebook from users? I know it is rather new but maybe some people already own it?