This article that ties in really well with Glenn's discussion last night on BreeFM where he discussed how pop culture perceives Lonelygirl15, and the use of the more recent Lonelygirl15 shooting style in the movie Cloverfield.
"In their effort to keep movie audiences captivated, directors and DPs are doing some unusual things with the high-definition digital-cinema tools at hand. The latest trick is to use studio cameras run-and-gun style."
Get ready for more, cuz George Romero's fifth zombie movie, Diary of the Dead, is shot mostly first person too, though I think the characters are film students, so it might be less shaky-cam. It comes out next month.