This could be very handy for "anyone" using a video camera while tracking or spirited driving. Come to think of it, I know the EXACT individual that this would be perfect for .... Schmoocher!!!
He might particularly like it and might find it useful as his last filming was pointed to the passenger side "A" pillar and the GPS was unreadable except to the driver... At least he could record the revs with the passing landscape....
(Cornie.... can ya feel the love???!??! )