Finally jumping on the iphone bandwagon! Never got an iphone before (2G or 3G) and wondering how much storage space I'll need on the 3GS. I have an old 4G ipod nano that suits me well (even if I need to clean/change my music once in a while) - but am wondering how much space all the other functions of the iphone take? Namely emails, apps, movies etc. Which kind of iphone 3GS do you all own and which kind of content do you keep on it? Is storage an issue? Thanks!