Currently living in Boston, MA.
Currently, what is the maximum length that you can have for an individual shot? If the shot is cut off at 4GB, then 40 some seconds of recording is virtually pointless unless you're shooting Dynamic Range Tests for fellow Camera Nerds :)
Marc Van Osdale commented on Canon 5D Mark III Continuous Raw Video with Magic Lantern (1920x1280 24p)
Sounds like BlackMagic still has the big upper hand in practical production.