Picture this: Seven devices connected to one USB hub. So far, no big deal. Now picture two computers, say, a desktop and notebook, both attached to the same hub. Here's the cool part: The hub has a switch over each port that lets you toggle individual USB devices between the two PCs.
I think it's a neat idea because I'm able to use any USB device -- a flash drive, external USB backup, printer, mouse, – whatever -- without the hassle of unplugging the USB devices. Ultra's powered 7 Port Buddy Hub costs about $30.

Powered 7-port hub has toggle switches
What would be great would be hooking up the hub to a USB enabled router, so the flash drives/hard drives or whatever could be accessed by any computer on the network. Can you say cheap home security?
Only USB 1.1 compliant? Definitely reduces the usefulness of this device!