I have MMS and tethering working for free with the hacked carrier file 5.1. The current one is 4.0 so I am thinking they are going to update to 5.0 maybe? So will it really be an update? Anyways, im not going to touch my phone because there in the process of enabling tethering and you have to pay an extra $30 a month for that which I'm not keen on doing. So i'll just keep my phone the way it is for a very very long time.