ok this is my idea ,( sorry for my english but i am italian and i havent study english i have learned on the net) so m idea is make a app the unlock archievment on each thing you do like first call, 100 call, first message ,100 message ,100 contact on phone, 100 app downloaded and all archievent unlock some credit this credit can be used on the comunity of this app to make a ladder of all the person and also unlock grades avatar or something else and this can be also used in other app that count credit to buy item or anything you want , what you think about this?