[REQ] Any G-sensor Application can rotate based on shaking?

[coolfire74]

I very much appreciate that the diamond has G-sensor and can rotate itself based on the orientation. And I actually love this feature. But when I am reading or surfing webpages, or doing something else, it is really annoying if the screen rotates just because some minor orientation changes of my device or sometimes when my body moves a little. It is really annoying because I need to wait probably some time to rotate the screen back.

Is there anyway or any program can set the screen rotate only on shaking or define the angle difference of the device to rotate the screen? I really love the idea that when I hold my device and then shake it, and only the shaking can activate the G-sensor. But can we do that? Does this kind of apps exist?

Thanks!