1. It would be great if turning off the main unit would trigger the handle bar remote to shut off as well, it would be nice vice versa although I would think not many people would like that (maybe put it as a setting in the phone app).

2. It would be nice too if it doesn't consume too much battery to have the handlebar remote poll periodically (obviously it will have to be frequent enough to be useful) to see if the main unit is on, and turn itself on it if is.