I got an iphone 5 for Christmas, so my Iphone 4 is just collecting dust. It's in great condition. Do you know of any good ways to trade it in? I'm eyeballing the Amazon.com trade in system. I don't need a tablet, but if I get a chunk of cash back for my phone, I might!

I also have my iphone 3, but E is not keen on playing with a phone that doesn't light up. Darn!