Sony Ericsson W810

Like many of you out there I have waited for Cingular to release the w810i. My intention was to take cingular up on the 30 day trial period and decide if I wanted thier version of this phone or the unlocked. Hoping this will start a thread of those of you with knowledge of both can reply.
Topics

Pros and cons

Email pop
Internet connectivity
accesseries
software differences
Mobile TV
ECt...