Would I buy another - No. Why? Because I already have a brand new in-the-box spare just in case!

Sure there are things I'd like improved on the N900, especially battery life. But the broad market (apparently) doesn't care about battery life, real world useability, user programmability, etc. It only cares about shiney-shiney and 'mines newer, and more blingy than yours'. So on the odd occasion that a device escapes into the real world without the marketing department fscking it up, I reckon it's worth grabbing a spare :-)