OK, I'm 4 days late in posting this, but I spent the week sitting on the beach at St. John, USVI, Michael Robertson writes
Leaning on the experience from my MP3.com days, and with the help of some smart guys at Linspire, I designed MP3beamer - a music appliance that we're making available today. It's designed to not only keep track of all my music, but also make sure that I can play it anywhere in the world: my house, work, from a PDA/phone as I move about or even at 30,000 feet on a cross-country plane trip in a middle seat.
You're probably wondering how it all works. There are several software components that make up MP3beamer. Of course it runs the Linspire operating system - Linux is ideal for a music applicance because it's low cost, durable, and immune to viruses that plague Microsoft Windows computers. Then there's the MP3beamer software, which is the brains because it communicates using various protocols (this is fancy name for computer languages) so you can use your music on iTunes, home stereos via media receivers, Java devices and over the internet. MP3beamer includes Lsongs, which is the software used to auto-rip your CD collection. It also includes MP3beamer Sync - a small utility used to mirror songs from MP3beamer to iTunes so you can access your music without an Internet connection. You'll find screenshots, videos, and lots more information on the MP3beamer web site describing it in much greater detail.
Here's a video of Robertson demoing it.