Yep, Nissan's 370Z has had SynchroRevMatch as part of its Sport/NISMO packages for a few years now, and from what I've heard through friends it's very simple and works really well... Although it makes me wonder at what point on the spectrum does a "manual" become an "automatic"
Sometimes I do not have the right shoes on to rev match so I can see this feature being useful. I would consider a car a manual if the user has to press a clutch in before changing gears.
Eh, you can revmatch without heel-toeing. I did it for years before I started driving at the track and learned how to heel-toe. You just brake enough for the turn, then let off the brake entirely and blip the throttle and drop the clutch while turning.
http://en.wikipedia.org/wiki/Synchronized_down_shift_rev-mat...