Such a product is a solution looking for a (non-existent) problem to solve.

I've had a lot of experience with head-up displays in aircraft. They are only used for short periods of time (perhaps 5 to 7 minutes) during very specific phases of flight, for example, on final approach to landing. During all other phases of flight, it is much easier to look at the instrument panel (analogous to the speedometer and/or GPS navigator on a motorcycle) or to look out the window to see where you are going or what attitude the aircraft is in.

The benefit of a HUD in an aircraft is that the HUD image is displayed directly in the pilot's line of sight, and the symbology on the HUD exactly lines up with and exactly matches the position of the horizon outside the aircraft, and the runway the aircraft will be landing on. This enables the pilot to transition from instrument flight (displayed on the HUD) to visual flight (looking at the runway) without changing focus or eye position. Such a transition period does not exist in automotive operation.

Automakers have introduced HUDs in vehicles, but they have not been particularly enthusiastically received, primarily because they appear outside of the center of vision (normally at the bottom of the windshield) and still require the user to look downwards to refer to them. The same holds true of a motorcycle helmet-mounted HUD - the display is outside the center of vision, and if you have to look outside the center of vision to gather information, you might as well look at the primary instrument panel and/or navigation device, where you can find a high-quality display, rather than looking at a small, abbreviated, and monochromatic display in a HUD.

Michael