i have oldschool 7520 from nextel. id get a tmo dash if it wasnt for work. i have to lug this crap around and use it for aim and emails from craigslist : ) . and i work sometimes on it but most the time just use outlook on a pc.
I have the pearl. The Suretype takes some getting used to buy I love it. I had the 7520 for a couple years with Nextel and got spoiled with the keyboard.
The dash is pretty cool looking but never personally used it.