This may be a little OT... but if you want to win me over on a geek focused device... i.e. power users... 3000mAh battery minimum. I know it's not the core intent but personally that grabs my attention as a power user just as much.
I was thinking someone should make a black and white android smartphone if it helps the battery to last longer. I would take half a week of battery over a color screen but I'm probably the minority.