I actually forgot how frequent I used BBM... So I guess if you add that, it wasn't too bad after all.
After a full charge Friday night, DISC from the charger around 1:30am, now it's Saturday afternoon 4:36PM, battery still at 95%!!! Well, only had a couple e-mail and zero calls since this morning. I think there were also 3-4 RSS feeds came in. (Not sure if that also decrease battery life faster.)
Maybe afterall, the bluetooth does drain the battery faster than anything else?