I have had my 2210 for a few months, I have noticed the battery discharges faster than my 3850 did.
While listening to music today I found that the battery would drop about 20% in an hour! with the screen off, bluetooth off, IrDA off etc. The music is stored on a CF card and played using Media Player.
Does this seem right?
Also when fully charged Pocket Plus estimates about 5 1/2 hours runtime.