Been there, done that. Why's this superior?
USB device servers are nothing new, with products from Silex and Keyspan, among others. They work over regular Ethernet, which means your integrated wifi is just fine as one hop in the network. But because of Ethernet's timing uncertainty, they work only with control, interrupt, and bulk transfers (USB message types), not the isochronous transfers required by audio and video devices.
Which is to say, you can move pictures off a connected camera's memory card, since that's a bulk transfer, but you can't run a webcam or a USB headset from a device server.
WUSB should fix that. I stress "should". Without confirmation that this gaping limitation has been surmounted, all further product plugs are useless copypastes of useless press releases.