How to Sell Your 1st Gen iPhone

Cult of Mac walks us through the process of selling your iPhone in anticipation of the 3G iPhone launch next week.

Its iPhone upgrade season. With the deluge of iPhone 3G rumors convincing just about everyone that now might be a good time to dump the old phone, in anticipation of getting one of the new models, heres a tutorial to help you sell your iPhone safely, and get the best price.

The guide actually does touch on some good tips, including how to wipe data from your phone and also the fact that unlocking your phone can get you $100 more than a locked one.

The biggest question, of course, is when to time your sale to avoid the rush of other sellers.