Ever since people started talking about the battery problems on android devices, this is what I have been most concerned about. Apple, with the new iPhone addresses this issue with the iPhone 4, but android phone makers just seem to be making devices with bigger screens, with nobody trying to bring out a device with a better battery.
My Incredible's battery is at least as good as my old 2G iPhone.
One advantage of the Android phones is that you can actually open them up and swap in a new battery (just like with every phone in the world besides the iPhone). So if you really find that it's a problem, you could buy a 2nd battery and take that with you sometimes. It's not optimal, but it would work.
Also, the Android phones are trying to hit a price point, and usually skimp on the battery. Buying an aftermarket battery can greatly improve battery life.
(The Evo 4G ships with something like a 1400mAh battery, but you can get 1900mAh batteries that will fit in the same space.)
And you can get 2 batteries w/ charger shipped from HK for like $12. There's really not much reason to worry about battery life now (except on the iPhone).
The Droid X will have a 1540 mAh battery (big for a stock battery). This is the phone I would go with if you actually like the 4.3" screen, which I do.
If you want a slightly smaller screen with a physical keyboard, wait for the Droid 2 coming soon.
If you have even more patience, there are rumors of a 2Ghz Android phone coming in 4Q.
HTC has both the Desire and the Legend (not sure what the US names are) in their line up. The Desire is for people who want the hottest specs and the Legend is for people who want better battery life and design.
