Hmmm... My current CRT TV is 60Hz (with only one field per full scan even). No flicker. All my early computer monitors were 60Hz. No flicker. Movies are mostly 24Hz. No flicker. HDTV in North America is 60Hz.

I agree about the issues with 3D detracting from its adoption, but problems with displays and flicker aren't necessarily based on their refresh/scan rates. The story with shutter-based glasses is a different beast entirely because they're covering your whole field of vision. If each eye is to shutter opposite the other, that means each "lens" would actually be 30Hz if the displays are going to be 60Hz. Though I suppose they can interpolate and run the scan rate at double or quadruple time. IMO, high scan rate enhanced TV looks like shite. It makes a lot of things look like they were filmed on a home video camera.