What do i need to do?

[ks503]

I want to sell my iphone to get the new one when it comes out.

What should i do to erase my acc on it so someone else can use theres...

Pull out sim card?
Restore?

Also, Im on ATT. so if i run ziphone and do the unlock, will it be ready for any GSM?

Thanks.

[pokekid]

restore and do not sync with your saved back up when its done. then just run ziphone or whatever you want and you should be fine.

[ks503]

Cool thanks, but what about the sim card? Does it need to be taken out? My number is stored on it so i think yes?