There are probably better places for this discussion but oh well...
I'm into microcontrollers/GPS/robot design and stuff like that. I was thinking, what would be the dream "gadget" to attach to your scooter? What would it do?
I'm thinking a very small device with a daylight-readable LCD in it and a GPS, for starters, just for an accurate speed reading. Then you could add battery monitoring with predictive capability for remaining time - that could, for instance, learn the exact discharge curve of YOUR batteries to give you really accurate estimates.
This is just off the top of my head... anything's possible. And it doesn't have to be insanely expensive, believe it or not, So what would you want to see in your "dream" scooter add-on gadget?