I've been using it for a couple days now. To summarize:

* Responsiveness is almost identical to the 6750 (a little slow) in spite of
a bit more memory

* Screen is nice, and backlight is much brighter than the 72xx series

* Cradle is now USB - cleans up an extra power adapter and cord at least

* Runs 3.7.1 software which include a speed dial function (for those that
use the phone)

Otherwise, it's about the same. A decent upgrade, and for those considering
it new, the screen alone is worth the extra cost, in my opinion.

-Jon