Work kindly provided me with an O2 XDA a few weeks ago so that I could get email on the go. Now me being a bit of a gadget geek thought woohoo this'll mean I can dump my palm and mobile for a single device. Unfortunately the XDA is a compromise of the worst kind - yes it's got load of features BUT and it's a big but - the battery life really sucks! If you really conserve it you might get a day and a half - compare that with my Nokia mobile and Palm Zire both of which would be well into their second week with the same usage. In addition the XDA is saddled with Windows Mobile - nice idea but oh dear is it flaky - it once crashed four times in a hour!
Hopefully I'll be swapping it for a blackberry soon and that can't be as bad - can it?