10 IMPORTANT proprietary software for Linux Ubuntu

Flash 10 [DEB(*)]

Plugin for Multimedia Web contents

Vmware Player

Virtual Machine
http://www.vmware.com/products/player/

Dropbox [DEB]

Smart incremental synchronization Tool/Service
NOTE: The GUI is GPL, but the daemon is proprietary
http://www.getdropbox.com/install?os=linux

Google Earth [DEB(**)]

3D Earth Visualizer

Nero

CD, DVD, Blu-Ray Burning application
http://www.nero.com/enu/linux3.html

Nvidia [DEB(*)]

3D video driver
http://www.nvidia.com/object/linux_display_amd64_177.82.html

Fglrx [DEB(*)]

3D video driver
http://ati.amd.com/support/drivers/linux/linux-radeon.html

Picasa [DEB]

http://picasa.google.com/linux/thanks-deb.html

Skype [DEB(**)]

Client VOIP

W32Codecs [DEB(**)]

Codecs for Widows media formats

Unreal Tournment 2004

The first commercial game for Linux

(*) DEBS already avalable via official Ubuntu repository
(**)DEBS avalaible via Medibuntu repository