I want to install the latest multi touch update (from T-Mobile UK) but before I do I want to back up all my games data. When I updated to 2.1 I lost them all and had to start again. In particular I don't fancy going through all the levels in Angry Birds yet again to get 3 stars and all the golden eggs. Does the standard backup and restore app do this or is there something else I can use? Or does this latest update leave apps as they are? Thanks.