I concur. I have had the following phones:
Treo 650 and 700p
Windows: PPC-6700 and AT& 8525
Blackberry 6510,7510, and 7250
Now i have the 8320. I have found my new curve to be the best of both worlds. I very much liked my Blackberry 7520 but it lacked the extras like a speakphone or MP# player. When i swtiched back to windows pocket PC phone to obtain those features i missed the stability and simplicity of the Blackbery. I was very happpy to be able to return back to the BB world.
As a tech geek I can humbly say one thing about Blackberries in general. Although they may do less than other cutting edge smartphones, they do waht they do much more reliably. Most of the things on other phones can be adapted to the BB. An example would be SimulSays to incorporate visual voicemail.