Get an iPhone!
I have been a long time Palm user - starting with a PalmPilot and ending with a Treo 680. I got sick and tired of having my phone crash. I now have a Curve and love it. Tasks and Notes are not nice on the BB as the Palm. I also don't understand why RIM doesn't thread your SMS messages like everyone else.
For me, I do a lot of e-mail, so typing on an iPhone is out of the question. But, if you're not doing a lot of typing, the iPhone is great. They now have a 3G model!
~J.