And what is he going to do with it? If it's just the run of the mill emails, browsing and word processing, he might as well fire it up and use it. No matter what, he's going to lose money if he sells it.
Unless he takes it into the apple store and says it was a gift he didn't open....eh, who knows?
May is too long ago Apple won't take it back. You'll have to sell it yourself. I remember a couple years back I bought a MacBook Pro and it got refreshed a week later. The Apple Store took it back no questions asked since I was still within 14 day period and exchanged it for the new ones and no restocking fee either. I was told beyond the 14 days it would be a much different story and will have to involve a manager depending on the situation. Since it's been at least 2 months already I'd say it probably won't work out too well but it doesn't hurt to try.