Can I trade my iPod touch 4g for iPhone 4?

Without a contract on the iPhone and do I need a reiceit and how much will it a iPod touch 4 be enough for a iPhone 4 and where can I trade it thanks

Most places don't let you trade in old electronics for new, not without paying anyway. If you're lucky you might get $30 for your old iPod, so you would save $30 on your iPhone 4.

… Also remember that if you want an iPhone without a contract you will be paying full price for it, that's probably $400 $500 or more.