Linux Compatible Software - Know Any?

[ClubMed]

Hello everyone, i am hoping to compile a list of all the linux & windows compatible software you/we know of, please post here any software you knowa about that works is available for BOTH operating systems.

Thanks very much in advance!.
(name and link would be nice).

Ill start with Gimp: www.gimp.org

[Redwolf]

Blender
POV-Ray
Unreal Tournament (requires a patch for Linux)
UT2003

[brian0555]

Wolfenstein: Enemy Territory

[pbharris]

open office

[HaroldW]

Star Office and the Mozilla web browser.

[ClubMed]

I need graphics, word processing, animation (3d design), utilities etc.. that are compatible with both windows and linux. Games are not the priority.

Links to the main websites would be nice too, thanks for the additions so far and keep them coming please.

[nukes]

For Email:
Evolution.
http://www.ximian.com/products/evolution/
Utils:
wget: http://www.gnu.org/software/wget/wget.html
ImageMagick:
www.imagemagick.org
vmware: http://www.vmware.com/
nmap: http://www.insecure.org/nmap/
(I haven't used the windows version, but I presume it works fine)
Many more. Most Linux application software has a port for windows.

[ClubMed]

excellent thank you, need more