I had success. I did see a weird thing where my WiFi wouldn't connect at first but after about 10 minutes of trying, it connected just fine and it's been fine ever since. The MMS settings are there and I can send ringtones (although I haven't tried it) but I can't send a voice message. Internet Sharing isn't there but I think that will be a HTC/Verizon firmware update.
In the article I linked, there is another link to the actual tutorial on how to do it. If you are a novice, either read it very carefully and fully understand the process before trying, or don't mess with it if you are worried you might ruin your device.
