Okey dokey...
I work with these things all freakin' day long, and in my opinion, it all depends on what you REALLY want to do, and who you carrier is.
First off if you want speed you need either a 3G/UMTS/HSDPA device from Cingular/AT&T (or whatever they want to call themselves), or a EV-DO Rev A device form Verizon or Sprint.
If you need primarily email, and you need your email ASAP Blackberry. If you want to do anything else besides email get Win Mobile/Smartphone, or even a Symbian device.
Here is how I see it
--Blackberry--
-Great, fast, direct "push" email (meaning you don't have to get your mail, it just shows up on the device)
-Horrible navigation (IMHO)
-Best for email
--WinMo Pocket PC--
-Touch screen (easy nav)
-Remote desktop
-easy browsing
-"push" email (as long as your backend has WinServer 03 with the Exchange Push patch)
-Word, Excel, Power Point integration
-much more like a cut down laptop
-devices are FREAKIN' HUGE (in comparison to a normal phone)
--WinMo SmartPhone--
-Remote desktop
-easy browsing
-Word, Excel, Power Point integration (typically)
-"push" email (as long as your backend has WinServer 03 with the Exchange Push patch)
-much more portable
--Symbian--
-quick easy to use
-you can install the Blackberry Email client (email using Blackberry push)
-most functionality beyond standard organizer needs to be installed 3rd party
What would I get in these areas?
--Blackberry--
Pearl or the 8800 (not out yet)
-The Pearl is smaller (more like a phone) the 8800 is just a full size (like a freakin' sandwich). The trackball is great to navigate, and is probably the best thing RIM has ever done with one of there devices
--WinMo Pocket PC--
Cingular 8525 or Sprint 6700
-The 8525 is a 3G GSM world phone. So if you go over seas it will work. The Sprint 6700 is CDMA/EVDO (not Rev A), but nice and quick. Both have slide out keyboards and WiFI (a really big plus in my book)
--WinMo SmartPhone--
T-Mobile Dash or T-Mobile SDA II
-The Dash (aka HTC Excalibur) and SDA II (aka HTC Tornado) both have WiFI. The Dash is like the Moto Q, just a bit smaller. While the SDA II is a phone with benifits. Both have memory card expansion up to 2GB (MicoSD and MiniSD respectively). Whatever you do here don't get a Q!
-
-Symbian--
Nokia E61
-Cingular carries the E62. The only differnce being that the 61 has WiFi and the 62 doesn't. Again this device is a Q like form factor. Nice overall, but without the WiFi you are stuck with EDGE as your fastest data connection.
Just remember most of the GSM devices can be unlocked, and therefore a carrier independent. So that means for you, unlock and put in the SIM. Done. Verizon and Sprint devices are technically capable of being unlocked/flashed and activated on another carrier, but neither will activate a device that doesn't have there name on it.
Hope that helps out
