Epic has released a new Unreal Tournament 2004 demo for Windows, which is based on- and full compatible with- the latest retail patch for UT2004. There's also new content as the demo now includes ONS-Primeval and CTF-FaceClassic. A Linux version of the updated demo is out as well, and the Mac version is expected soon.
Probably to promote the Editor's Choice Edition.
GO EPIC :D