Here’s an interesting little program that Albert emailed us about earlier today. One of the best selling points of 2.60 Firmware is the ability to stream RSS feeds to your PSP via your WiFi connection. Now that feature is even more useful with the iTunes RSS Server which will allow you to stream MP3 and AAC files to your PSP. To install, simply download the appropriate file, run the iTunes RSS Server, set your PSP to connect to http://{Your PC's IP}:8080 and subscribe to the RSS feed. Here’s the complete feature list for this feed streaming application:

Run as a web server, accepting port 8080 requests (configurable per --port option)
Publish RSS 2.0 feeds with rss:enclosure that PSP/iTunes can subscribe (PSP firmware 2.60 required)
Run both on Windows XP and Mac OSX
Support smart playlist
Support on-demand reloading of Music Library (you don't have to restart the server when you update iTunes library)
Publish playlists with MP3/AAC/MP4 files (including Video)
o Automatically exclude Video and DRMed AAC files for requests from PSP
Extract album artwork and embed as rss:image
Serve media files streaming per byte-range requests (PSP RSSchannel requires)
Support htpasswd based HTTP Basic Authenticatoin (--passwd /path/to/.htpasswd)