I have an unlocked HTC Surround and I don't have Tango yet. A friend of mine has the Nokia Lumia 800 and he has the update.
Hi All, I actually got the "Update Available" shortly after writing this question and sending a support request to HTC.
So officially, HTC Trophy owners should be able to see the latest update.
I have a Nokia Lumia 800 and I'm rocking Tango on my device. A friend of mine has the same device and the update as well. You'll get it soon, man.