I just read in the Indianapolis Star (not one of my usual sources, I confess, but when in Indianapolis, do as the Indianapollonians do...) about a new office chair design by Markus Koepke for the HON company. It's called the "Purpose Chair," although "purpose chair" seems to be a generic term for many chairs designed for specific applications.
Its claim to fame is that it supposedly automatically adjusts itself (except for an initial height setting) to anyone who sits in it, setting the proper angles and such for comfort. That would make it an ideal chair for many modern work settings where people move from place to place, gather in informal groups, or convene frequently in conference rooms.
One thing that particularly struck me about the description was designer Koepke's finding that people generally don't take the trouble to correctly adjust their chairs. Not when it's their own chair at their own desk, and certainly not if they don't expect to be in it long. They find it too time-consuming or difficult to jigger with the various settings of seat, back, armrest, height, and so forth. I suspect he's right about that.
So, while the claims about instant and automatic adjustment remain to be proved (I'd like to try one of these chairs for a while), it might be a great new idea, if it works as advertised.