My advice to everyone is to not use your upgrade at all until/if Sprint ever gets Network Vision up and running. If you upgrade now you will regret it like I do. You will have 3G speeds that are slower than dial-up circa 1997, that is if you get bandwith at all because sometimes I don't. And don't count on customer service to help. They are very friendly but completely incompetent and deprived of the information or tools to handle any issue you may have.
Save your upgrade or jump ship while you can.
Happy LTEvo owner. When do I get to play music with everyone?