I found 3 or 4 of these at a garage sale a few years ago for a few bucks, and I am (surprisingly) just cracking them open now.
On the front, it is marked as D-Link DWL-120 11Mbps Wireless USB Adapter, on the back is FCC ID# MXF-WL280, H/W: B2, F/W: 2.25
On the bottom of the PCB, we have the following chips:
This is the Targus RemoteTunes(tm) for iPod. I got it from XSCargo, where they currently have them available for CDN$9.99.