Polar Clock
A clever piece of time-telling device that uses concentric circles to represent month, day, hour, minute and second. The arc grows as time goes by. This was featured in the February issue of WIRED magazine. Kudos to Actionscript developer Gabriel Bucknall for the design/screensaver and Ed Kauffmann for developing the iPhone app. Download the screensaver (available both for Mac & PC) here and the iPhone app from iTunes.