So here's a script for Win32 ActivePerl to control local iTunes on your favourite Web browser: itunesctrl.pl. Since Apache with CGI seems to have some difficulties using COM due to security problems, it runs as a standalone web server using HTTP::Daemon.
The simple-enough API is compatible to Apache::iTunes, so you can create an API client on your PDA or mobile devices to control iTunes without your PC.
It might be interesting to play Party Shuffle on AirPort Express connected iTunes. You can hack this itunesctrl script to allow you to control Party Shuffle playlist by LAN PCs (by
$itunes->CurrentPlaylist->AddTrack($track); ). Now you have a true MP3/MP4 jukebox on iTunes!