This isn't Palm-specific, but I figure a number of audiophiles will appreciate this post. Found this gem today at John P. Falcone's Alpha CNET blog and thought I'd share it with the 1src community!
"Airfoil (by Rogue Amoeba) was built with one purpose in mind - enabling you to send any audio you want to Apple's AirPort Express device. Airfoil works in conjunction with your AirPort Express and any audio player. Use it to send audio to your AirPort Express from WinAmp, Realplayer, Windows Media Player - just about anything. Airfoil and your AirPort Express make a great pair."
(For those of you who've not played with an Apple Airport Express, it's a wireless access point originally designed to stream audio content only from Apple's iTunes. Airfoil enables the Apple Airport Express to become a streaming conduit for most any PC source!)