Personally I just loved my four-year-old (or so) Sony VAIO.
It's smaller than most netbooks, but still more RAM and CPU than most netbooks do today, and even had longer battery time than most when it was new (4.5h in windows, 5 in linux, nowdays it's closer to 10s, though.

).
Sometimes I wonder what is going on with portables nowdays.
Admittedly, the integrated intel graphics card is not exactly stellar, and it's rather slow now, but a modern machine built the same way would be perfect if you really want a portable (sub-1Kg/2pounds) notebook.
But I'm old-school, I guess, I want a portable and a stationary computer (and a server or two..), and I want my portable to be just that, portable.

Hm. The VGN-CS290 seems to be somewhat similar. A 1" larger screen, but not too much bigger. But it does weigh in at almost twice as much.
