Beware iPhone unlock scammers on eBay
There are some eBay'ers trying to sell their OOTB (out of the box) 1.1.2 iPhones on eBay claiming you can unlock it yourself. They are either not knowledgeable enough to know there is no way (at present time) to unlock an OOTB 1.1.2 phone or they are intentionally trying to scam you. (SEALED/UNSEALED makes no difference). So beware.
If you see a posting like this, use eBay's 'Ask a seller a question' feature to contact them before you buy. I asked one seller and he genuinely didn't know it couldn't be done.