Love Vlingo on the X. Been using it for a few weeks and have had great results. Did the 2.2 upgrade and the widget quit working. Decided to try the new google commands feature on 2.2 and found (with a sigh...) that I wasn't able to "voice command" an email to any contact that wasn't in my gmail contacts.... WHAT?!?!?!
I have alot of contacts sync'd from my corporate email and couldn't text, email, or call by voice command to any of these contacts. Found a Google article on this and it's a known limitation. Very surprised that a 3rd party app would be able to do this, yet Google would leave this out.
Flashed back to 2.1 to regain the widget functionality for Vlingo. (Also flashed back due to some bugs that drove me crazy.) At this point, I'd still pay for Vlingo over the 'new' google voice commands on froyo.