DO NOT BID ON THIS. Bidding wouldn't be gutsy... it would be crazy.
I bet it's a case where a legit account has been hijacked. All the signs are there: a not-yet available product, offered at a HUGE discount... a different e mail address given in the item description... a seller account with great feedback but on totally different items... no picture of the actual item, just apple.com photos.
If you contact him, he'll tell you that the real e mail account associated with the seller account isn't working (or something like that), so you have to use the one in the description. This is because if you use the real one, the message goes to the person who really owns the seller account, and the cover is blown.
If you ask him about escrow with a service of your choice (escrow.com?), he'll give you some story like the deal needs to be done quickly or his company doesn't allow escrow.
I've seen this exact pattern before. We all want a G5 tomorrow, but THIS IS A SCAM.