OK, I'll be honest, since my first attempt and finding things wonky, I've gotten this horrible feeling things just aren't right since the upgrade. Went back through the manual update process and things seem to be better, but not without weirdness. I hate weirdness 
However, the one thing I've noticed consistently it seems is voice to text (in both messaging/email/seesmic/etc and in the search widget). I would be able to successfully use it a few times, but then, after a while, it just gives me an "Error! Please try again" message. Once I reboot the phone, it'll work for a bit, and then beging giving me the error message again. Finally, I did a battery pull and the few times I've tried it since, it's worked, but I'm not sure if the battery pull really fixed it or I'll run into it again.
Thought I'd throw it out there.

However, the one thing I've noticed consistently it seems is voice to text (in both messaging/email/seesmic/etc and in the search widget). I would be able to successfully use it a few times, but then, after a while, it just gives me an "Error! Please try again" message. Once I reboot the phone, it'll work for a bit, and then beging giving me the error message again. Finally, I did a battery pull and the few times I've tried it since, it's worked, but I'm not sure if the battery pull really fixed it or I'll run into it again.
Thought I'd throw it out there.