I personally think it is an outstanding concept. I am pretty sure a driver's reaction to feel is quicker than reaction by sight, when comparing looking at a vacuum gauge to this device. Drivers will be able to keep their eyes on the road and will be able to use another sense to drive efficiently.
If big manufacturers ever caught on to something like this, they would have to make a disconnect switch or button for liability reasons. You don't want any lawsuits because people claimed they couldn't accelerate fast enough out of a situation.
