I dunno about this battery situation. My expectations were very low (i.e. <1 day's use on a charge), but actually I'm getting a little better than that. Add to this the fact that the phone is new, so obviously I'm playing about with it a lot more than I would normally. Also, I'm conditioning the battery, so with any luck performance will improve.
This is all without any effort on my part to make the device more efficient (i.e. turn off wireless, etc.). In fairness, the battery life is poor compared with my Nokia 5800, but as long as the DHD battery can last a full working day (as it appears able to do) then I'm happy.
Ginga