You haven't grown tired of riding music, have you? I certainly hope not. A website for Audiosurf Air has appeared, and based on the few early screenshots included, there's a lot more where the original's brand of music interaction came from.
According to the site, Air will be out later this year. It's also got a sign-up to put yourself in the running for the beta; you shouldn't need me to convince you to do that. I'm eager to see what, if anything major at all, has been changed outside of the improved visuals.