How much memory do typical applications use up? I'm sure it varies by the app, but can I get some examples for simple, medium, and extensive apps? I picked up an 8 GB touch which is more than enough for my music, videos and photos, but now as I'm considering a jailbreak I'm wondering if I will start using many GBs of memory for applications (assuming I do jailbreak). Also does anybody know if I want to exchange an 8 GB for a 16 GB in the first 14 days am I able to do this free of charge or is there a restocking fee? Thanks.