MP3onChannel
Cool new gadgets are relatively lacking in the summer months. Companies save their product announcements for the holiday buying rush in late fall and the big consumer electronics conferences of winter, so it's cool to run across something unexpected like the MP3onChannel in the middle of summer. This almost self-contained MP3 player plugs into the lighter slot in your car and transmits audio to your FM stereo. The device is almost self-contained because it requires a USB keychain drive filled with MP3s in order to serve any useful purpose. Play controls and FM channel switching are mounted on the drive itself. For $70, it's an MP3 player that can live in your car. From the documentation, it would appear a card reader may be substituted for the USB drive. No word on whether the device plays other music formats or not.