One of the central arguments of the 4/3rds mount was that digital camera sensors were destined to stay small, thus, a new mount for these smaller sensors, with a smaller lens throat and registration distance so that the lenses could be smaller and lighter, only covering that 4/3rds mount size. Of course, Olympus kinda screwed it up.
Sadly, the Pentax medium format lineup seems to have reached it's final end, much to the dismay of my friends who are too limp-wristed to carry a Real Man's Camera (i.e. the Mamiya RB67/RZ67)
Pentax announces the P70, with a 28mm-e wide angle. Yes, people are suddenly realizing that it's more useful to go wide than long. I'm not complaining, given that I've been saying this for years now.