UPDATE 2 :: Taken from beyondunreal.
"The dedicated server should be along very soon, but the Linux client won't be here tonight, for those waiting for it. I have set up a mailing list for UT3 linux and mac discussion, and I'll be announcing things there when they become available. Send a blank email to ut3-subscribe@icculus.org to join the list. Thanks, --ryan."
If you are an administrator, Open: Program FilesUnreal Tournament 3 DemoUTGameConfigUTEngine.ini
Otherwise open: My DocumentsMy GamesUnreal Tournament 3 DemoUTGameConfigUTEngine.ini
Change the line
bInitializeShadersOnDemand=False
to
bInitializeShadersOnDemand=True
*RESTART BEFORE TRYING TO RUN THE DEMO AGAIN*
Workaround for UT3Demo not starting up on WinXP 64 and Windows Server 2003
Please post hardware compatibility issues here
The long awaited
"FilePlanet subscribers can pre-load the beta demo for automatic download and play immediately on release. Limited public beta demo reserves available."
UT3SystemScore
Minimum System Requirements
Windows XP SP2 or Windows Vista
2.0+ GHZ Single Core Processor
512 Mbytes of System RAM
NVIDIA 6200+ or ATI Radeon 9600+ Video Card
8 GB of Free Hard Drive Space
Recommended System Requirements
2.4+ GHZ Dual Core Processor
1 GBytes of System RAM
NVIDIA 7800GTX+ or ATI x1300+ Video Card
8 GB of Free Hard Drive Space
Constently Updated List
FilePlanet (Public reserve link)
itavisen.no (200 limit)
devotii
techpowerup.com
NGZ
i4games
unreal.ie
mywoh
sheez
gamedemos
i3d
igpug
hack4life
GamersHell
projectlan
fz.se
gameservers-net
utzone Torrent
Torrent
Torrent
Gamer.no Torrent
UT3SystemScore ::
Edited by Nicky at 15:48 CDT, 19 October 2007 - 72007 Hits

now that i'm officially a q3fanboy ... hate me
Nice, now I won't have to do something similar to this to find out if it's worth paying for or not.
got picmip?
anyway i hope the hype won't be crashing down on our expectations