Typing prosody?

Was just looking at moi fingers typing and making the occasional mistake: What determines these mistakes? I remember someone looked pretty much in detail at typing mistakes, but here's a question: Might typing reflect a "prosodic" organization? Do we type out phrases quickly? Do we pause mostly between phrases? Do we strike the keys most forcefully on phrase-initial segments? (c.f. Keating, Cho & Fougeron, 2003). Are the substitution / swapping /order errors related to the prosodic organization? Probably the best place to study this would be in a chat-room like scenario. I'm sure it could be done already and we would discover the prosodic organization of typing, and it will tell us that prosody is inherent in organizing language onto any motor output.