Spyball Revealed
gizmodo
Wednesday 21rd April, 2004 (UPI)

…the brutal visage of this device should not be missed. The engineers behind the Eyeball sensor package sent us this high-resolution image of the tennis ball-sized device, with a little more information. Apparently when the Eyeball is rolled into a room it steadies itself, after which the camera rotates a full 360°. Odfopt's Itsik Kattan also noted that this version of the Eyeball is currently available for purchase. Also, thanks again to Defensetech's Noah Shachtman for the original story.