If you want to run the risk of getting stuck with the iPhone we sent back because the proximity sensor crapped out (that's another story for another time), get ready to grab yourself a deal. Refurbished iPhones now look to be in stock at the online Apple Store, the supposed result of a nice, stiff mix of iReturners and busted devices. Both the 4GB and 8GB refurb units are being offered at $100 off -- $399 and $499, respectively -- making the 4GB model the slightly better value at a full 20 percent off its MSRP. Not a bad discount, as long as they got around to fixing that bum sensor.