This thread is a little old, but I figured I'd post here with my observations rather than start a new one. I figure you can never have too much information, right?
When mail2web's push email went south a couple weeks ago, having become reliant on push email, I decided to try a BB Pearl. Previously I'd been using the Dash.
My observations on the pearl so far:
1. The browser doesn't hold a candle to the Dash. If you MUST browse web sites on your phone like on a desktop, get the Dash.
2. Push email on the BB is awesome and fast! I can send an email from gmail to my BB address, and the phone will beep before the gmail inbox finishes loading after I've clicked the send button. I tried running a comparison last night between the two, but mail2web is still not working.
3. The pearl battery life blows the dash away. I don't think my battery is quite broken in yet, so I've been trying to discharge it completely and put it through a couple good full cycles - but it won't die! It's like the friggin' energizer bunny! I charged the phone Friday night, and haven't plugged it back in yet. It finally went to low battery on me this morning (Monday), but it's still going - though the battery indicator has been red now for about 10 hours (and I used the phone fairly heavily today and over the weekend). It's kinda ticking me off - 'cause I want to discharge it completely, yet I can never get it to do so before I need to juice it back up when I need to hit the road, so I can tether to my notebook in an emergency and not have to be worry about battery power.
4. Suretype doesn't bother me - but I can only use it if I have both hands on the phone. It seems my brain is trained to think T9 if I'm using the phone one handed - but if I get both hands on, it's just like typing on the Dash. I wonder if the people who complain about it are using it one-handed?