I have recently shifted to Android as well. I really miss the BB keyboard too, but not sure there is ever gonna be a device that completely fits my needs/wants. But it's fun trying to find it... LOL
Battery life seems to be a problem on all new
smartphones(some more than others) including the new BB's. My Moto Atrix 2 has gotten close to 40 hours of light to medium use which, from what I am reading, is pretty darn good all things considered. Of course that is after tweaking.
You can still be a positive contributor here with your ex-BB knowledge. So don't be a stranger.
Good luck with your new device.