Here is the Ambien Clock, a little desktop clock that will connect to your Google Calendar account. Your appointements then appear in the corresponding time area and also the background colour changes according to your planning: blue - nothing foreseen, yellow - move your a***, orange - too late.

The clock connects via the Ambient Information Network, a technology developed by the company Ambient which also developed others similar gadgets. And since it works on AAA, this device is really wireless...

... but maybe we would have preferred Wifi. Anyway, it's just a prototype in beta test: you can go to the website and help the engineers to decide the best look.