Fancy thing just happened. I've been out of my office for 40 minutes, came back and the battery is reporting 40%, which makes sense to me from where it was last night.
Must be the calibration tweaking they did and it got a little confused.
If anything I hope it is an optimization to get a bit more battery life
![Smiley](http://www.blackberryforums.com/images/smilies/icon_smile.gif)
though I've been happy with it lasting pretty much all day so far.