Anecdotally --- a number of my non-hacker friends have bought netbooks recently, and use them for quickly checking Facebook and their e-mail without having to s

Anecdotally --- a number of my non-hacker friends have bought netbooks recently, and use them for quickly checking Facebook and their e-mail without having to sit at a desktop or carry a bigger heavier laptop across the room. So I wouldn't be at all surprised if your users are disproportionately likely to have 1024x600.