I've had mine for nearly a month and just activated the radio portion two days ago and I can truly say that I'm very happy with this device because of the following:
1) More memory- its nice to install all the programs on this device's main memory that I previously had to store on the storage card on my 6800. I still have plenty of room left over.
2) Screen resolution - much nicer and videos play great on it.
3) Keyboard- much nicer spacing and really cool looking led shadow effects under the keys.
4) Processor- much quicker to do anything
5) Opera- I can finally check my bank accounts on-line (IE wouldn't work and my bank only had provisioning for AT&T customers)
6) No lock-ups, very stable - I've only had to soft-reset this thing when I was installing software.
7) People are always impressed when they see it and what it can do
Calls seem to be clearer- still need to install Audiopara but the volume is better stock than my 6800 was.
9) Touch Flo- I find it easy to use and don't feel the need to install SPB Mobile Shell on this device (really liked it on the 6800 though).
I'm sure I won't feel the urge to upgrade to something else for a long time.