I have a Toshiba 3500 (around the first generation series, I can't remember if there was one model before this one) and have been using it for at least two years. I love it. It's small and I can write on it or switch it to tablet mode when in a space limited area (i.e. travelling in Y, ugh).

They are slower (slower processors) but it performs well for the tasks I use it for, documents, e-mail, internet, remote access. I play a few games and movies on it too and it works fine.

The new ThinkPad X series is long overdue and I've been eyeing one to replace this unit. I just wish I could see one in person rather than looking at a web page with all the specs. ThinkPads definitely have the best keyboards and durability...I have three older TP's which still are ticking after several years of use and travel.