I wish I could tell you this was a joke.
It isn't. I'm sorry.
Though it looks like it could be a great MIT prank, this is actually a project run by the U.S. Postal Service. They're commemorating the 30th anniversary of the release of Star Wars: A New Hope by putting mailboxes decorated to look like R2-D2 into post offices, accompanied by the not-yet-functional Web address "uspsjedimaster.com". Dude, I think Star Wars is great and all, but I really hope none of my tax dollars went into this...endeavor.
$5 says we'll see a news headline about fraternity pledges trying to steal one of these in September.