I seem to have *cough* accidentally *cough* upgraded my phone to the latest and greatest from Google. ;-)
Behold the shiny new Galaxy Nexus with Android 4! This is the unlocked GSM version that's currently available at Telus here in Canada.
I've only had it for less than a day, so I'm still tinkering with it, but I'm liking it so far. The UI is pretty smooth and responsive and the feature set is definitely an improvement over Android 2. Physically, it's certainly a large phone, as you can see in the shot next to my comically-small-in-comparison HTC Hero. The texture on the back of the phone feels slippery and I've already dropped the darn thing a couple of times, so I'll need to look into getting a case of some kind.
Galaxy Nexus Unboxed
HTC Hero vs Galaxy Nexus
Now I just need to spend some time to migrate my data and apps over from the Hero and tinker with it some more. Should be fun!