my .02...
I started out with a 7290: tough but Bulky! Loved QWERTY.
I got a 7100g shortly thereafter. Suretype was "ok" I got by with it for about 6months.
I got an 8700 and kept it for a few months and was relieved to go back to QWERTY after the 7100.
I picked up the 8100 (unlocked) two days ago and have been loving it. Suretype is similar, but better somehow than it was on the 7100g, but I still prefer QWERTY better. So far I like the 8100 over the 8700 (I had the 8700g) for the following:
1. Voice recognition is Kick-ass!
2. Form Factor - I love the size of this thing, despite non-QWERTY
3. I can play my .wav attachments from Unity (Cisco unified messaging - a.k.a. Voicemail in email) FINALLY!!!
4. The camera isn't bad, although I don't know how much I'll use it.
p.s. I also have a Treo 650 (no comments please - I hate it!

) and I picked it up this morning and HOLY CRAP did it seem HUGE after using the 8100 exclusively for 2 days. Talk about the Treo-killer, I think the 8100 is a good candidate.
