Wireless Bluetooth Webcam

I'm surprised no on had thought of this before, but apparently this BT-1 webcam from Ecamm is the first to use bluetooth for wireless video transmission.

And just because it needs no wires, don't think it can't handle decent quality content, as it can stream 640x480 H.264 video with 48 kHz AAC stereo audio for 4 hours between charges.

As always, you can't expect this sort of stuff to come cheap: $150.
But, if you really can't stand wires running across your desktop, I'm sure you'll find a way to justify it. :)