Lol. eBay are quite usless when it comes to fakes and scammers. I've sold a few things on eBay and had a couple non payments. Nothings happens to the buyer but as the seller you still get charged the listing fee and have to list it again. It's a nightmare if you've got an auction that lasts 5 days and the winner doesn't pay. Takes at least a week to sort out then you've got to put it back up for another 5 days.
I sold my 3GS to a shop. He almost took my hand of for it. Lol. I'll be going back to him this year if the new one is worth buying...
ah like enviphone kind of sire instead of ebay.. good idea