Existing Sphere Devices that I find interesting:
Spherical Touch Screen protoyype by Microsoft (2008). 'Sphere' is an interactive spherical display prototype that uses custom optics hardware as well as computer vision and graphics software to enable interaction on a spherical surface. http://research.microsoft.com/en-us/um/people/benko/projects/sphere/http://research.microsoft.com/en-us/um/people/benko/projects/sphere/
Spinning LEDs create Hologram of the Globe by James Sears. Clip shows startup and shutdown of the device.