Belkin has released their F5L009 wireless USB hub and it's a very cool product in concept. The USB Network Hub connects directly to your wireless router, so wait, doesn't that mean it's tethered? It actually had no routing capabilities of its own, and requires the connection to your wireless router to operate. Once connected you can daisy-chain up to three additional 5-port hubs to it to allow for a total of 15 devices. You can sync your iPod wirelessly, print, access scanners and media readers, and much more.
Initial reviews on Amazon seem a bit mixed - consensus is that while this device works well for simple usage such as printing, more data-intensive access can be problematic. We reserve our comments until we can get our grubby little mitts on one and test our wireless robotic webcam surveillance system ourselves.