From the MAKE Flickr photo pool
Andrew from Boulder, CO created an orientation aware USB camera and imaging software to go with it -
First I built a circuit to make it so I could read a 3-axis magnetometer and a 3-axis accelerometer over USB, just for the heck of it. Then later, while trying to come up with something interesting to do with such a device, I decided it could be neat to throw a webcam in the mix.
After I got everything to work, and after a while of playing around with different ideas for software to make use of all that data, I came up with the app in the video.
Excellent! The potential applications run deep with this one. Hope he plans to share more on the design and software. – Orientation aware camera demo
Update: You can now find a bunch of helpful project details here – Orientation Aware Camera info