The next Borderlands trailer has been released, and while it's slightly more serious than the previous trailer, it still has a comedic edge to it. The trailer introduces us to the four playable characters and classes in the game, showing off each one's unique abilities.
The lighthearted style of this trailer is also prevalent in the game, which I think is a good thing. Also, don't worry - the full game won't have those censored logos, just look at the ESRB description.