Yes I do still run XP - I've kept running it for a few reasons:
1) I've spent months customising this install so it 'just works' for me 2) There's over 200 programs I'll have to find, download and install on Windows 7 (finding my license keys, old binaries etc if necessary) 3) I keep saying I'll replace this PC (from late 2006), so it's not worth reinstalling... :)