Hello folks... searched to no avail.

I am looking for a tweek to force the phone to rotate without movement. Why? using it in the car on the dashboard (with mimics remote touchscreen), i would like to stash it in the glovebox. But... for instance, if I am playing music, I prefer to keep it on landscape while listening, but need to switch to portrait to find stuff. Can't do this without turning the phone.

Does anyone know of a program (via cydia, etc) that would allow the phone to rotate on demand? (say by a gesture, or home button sequence, etc)