Before you get your Rezound, download AppBrain from the market, set up an account using your gmail address (I think you do this in the app, it's been awhile), then do a sync. Now all of your apps are saved in your AppBrain account. Then after you activate your new phone, go to the market. Any purchased apps will already be there. Then download AppBrain from the market (you may have to log in again or it may automatically recognize your account, I can't remember for sure) and do a sync. All of your apps should start downloading automatically to your phone. As far as logging in, you use your gmail account as the email address, that way when you get another phone (which is also under your gmail account) it automatically knows which account to use. Like I said it's been awhile since I did it last, so I'll have to do this myself as well.