Sony has had this Network Walkman NWD-B100 in the works for a while, and they've finally released pics of it. As you can see, you could easily mix this guy up with your thumb-drive.

It only plays MP3 and WMA, and as far as other features are concerned, it comes in two models: the 1GB (NWD-B103) and the 2GB (NWD-B105). Each has an FM tuner, 3-color LCD,12 hours of battery life, as well as a mic/voice recorder.

So far, the only release I'm hearing is happening in August in Europe.

Via Engadget