You would think that after the last time they would stay away from anything to do with baloons.

I would highly have to agree about it being a enemy. Well whatever it is hope its something great we get to do with it.

Maybe it's there to cover the Commenwealths most popular sporting event, gladiator games in Fenway Park, brought to you by The Institute.

I'd bet it's a one time quest related thing like how the original liberty prime was going to be a giant mech the vault dweller rides in

Its eye candy to get everyone excited.