Well like many others I plan on selling my first gen iPhone and upgrading. While I am not totally sure I will be doing this I would like to know what would make the iPhone go up in value the most. I'm thinking the most appealing option right now is just to unlock and jailbreak 1.1.4. If that is wrong correct me. Also, will it be possible to downgrade from 2.0 to 1.1.4, because I plan on having the 2.0 for a little bit before getting the 3g.