This thing has been rumored since 2012, and then finally announced for an October release... only to be pushed back to "Spring 2016". Leaks suggest that they weren't completely happy with something, so they changed that part or system, and are testing and adjusting the production train to suit. Sensor? Feature? Discovered weakness? Who knows, Ricoh is always particularly secretive. But it sure does look like a winner! They are shoring up the lens line up as quickly as they can, as well. Kinda exciting to me, as a Pentax faithful since the SLR days. Alas, I really don't NEED a FF, but that sort of fact has never stopped me, though. Yeah, TAV is useful sometimes, for sure. My K3 has 3 User presets on the left dial, and K-S2 has 2. I'm a back-button focuser (when I'm not using a manual lens, that is), and I like to dedicate one user setting as a kind of default front-button focusing automatic deal, for those rare times I might want someone else to use my camera for a frame or two, haha- just a twist of the dial and they're all set.