What do you all think of SRAM's Torpedo SS/fixed hub? This is like a flip flop hub, except there's not flipping or flopping. To convert from singlespeed to fixed mode, you give seven full twists of a screw on the hub.
Brad @ Urban Velo has a unit on test, but I'm curious if anybody else has given this hub a try. Is it easier to turn a screw around seven times? Flopping a wheel around hasn't ever seemed like too big a deal to me.