Small PCs are best as you don't mind carrying them around when out on important "business," and when attending "meetings," or when just having a laptop with you to look like you have a job involving computers instead of hairnets.
As a general rule of thumb, your laptop will seem to double in weight for every 30 minutes you carry it around without using it. Try lugging that massive £339 Acer you got from PC World around with you without dislocating a shoulder.

The Via Nanobook. Looks a little bit cheap, but then it does cost a quarter of what Sony charges for its delicate firetraps (VAIOs). It has a 1.2GHz processor, which will do for the internet and Notepad, plus it has a 30GB hard drive, wi-fi, Bluetooth, DVI and USB. Everything a big computer has.

Asus has made one as well. There must be some sort of Really Small Portable Computer Show going on somewhere in the world. It also has everything a big computer has and is called the Eee PC 701. It will cost under $200 when it launches in places other than Rip-Off Britain, thanks to being small and not coming with a hard drive - storage comes in 4GB, 8GB or 16GB chunks of flash memory.
It would appear to be aimed a certain kind of non-existent fantasy demographic of hot women PC users who laugh and giggle at all the sexually explicit MySpace messages they get. And when did white take over from pink as the 'For Girls' colour?