The BT Voyager Digital Media Player is a simple $300 wireless audio receiver that uses a USB base station to connect to your home PC and stream audio, CDs, or internet radio as far as its wireless transmitter will allow. Similar to many other home audio streamers, the BT Voyager unit sets itself apart mainly by using a wireless link that will not interfere with 802.11b signals (and not interoperate, for that matter). It also has dual audio ins and outs if you'd like to use it as part of a less mobile get up. It's a little pricey, but the simplicity and portability make it unique (if you can convince them to ship it outside of the UK).
Read [BT via TRFJ]
Update: Looks like Stuart at Pocket Lint got in a review.