How feasible would it be to create an application to set "tilt to scroll" and translate accelerometer data into scroll events? Sensitivity should ideally be configurable by a couple of parameters (threshold, and delay). Also, a curve mapping tilt degree and scroll speed might be handy, as well as a means to temporarilly stop the scroll.

This would allow to read ebooks or watch websites (no dirty ideas please ) with one hand (which if you only have one upper limb would be extremely "handy").

I fully expect Apple / Google to steal this awesome idea, so let me say this ahead of time: Screw you both.