ESPN INSIDER: Analyzing Wildcat Offense

Here's a look at how all those other teams (besides Miami) did when running "Wildcat" style plays in 2008. A few interesting bullet points that didn't make the article:

Teams other than Miami ran "Wildcat" style plays 16 times on third or fourth down with 1-5 yards to go, and 14 of those plays converted for a new set of downs (or a touchdown). Overall, however, direct snaps weren't any more successful than normal plays on first or second down.
The Browns snap to receiver Josh Cribbs (a former quarterback) in what they call the "Flash" package. While many other teams primarily used "Wildcat" on first and third down, Cleveland ran the Flash mostly on second-and-long.
Baltimore's two-quarterback package ran just four pass plays, with 14 runs.