I don't know about this guy but I probably recall 5% of all names of people I meet at a bar, 0% first and last names. I have a hard time faulting him if there is evidence of him calling Apple support and detailing the situations.
Wouldn't the owner of an Apple prototype most likely be...Apple?
Surely you're not asking me to buy the idea that they thought it was the engineers's personal property, and that if they sent it to Apple, it might never find its way back to him. That's an insult to even an average intelligence.
Obviously the "finder" knew it was Apple hardware and the thug who stole my XBox knew it was Microsoft. The finder DID call the "owner" and most likely has it recorded. I'm not defending Gizmodo at all but I think the thief has a more compelling argument in court.