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I pretty much sync everything which comes to around 4gb as I store my pictures on iphoto and only a few on my iphone.
 
No. I have songs I just want to keep to remember a time but I don't want to listen to them all the time in rotation. Sometimes you just get tired of the song, sometimes you buy and album and only some of the songs are favorites after 2 months. That is what I love about the iPhone, it is so flexible that you can pick and choose what you want and how you want it.
 
I have an 8GB iPhone and approximately 100GB of media. Fortunately, I'm not someone who has to have everything with him at all times.
 
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