Blender is professional Open Source 3D modelling suit that's runs in Ubuntu (which also available for windows and Mac OSX). The Blender Foundation and online developer community release regular updates to Blender, ever increasing productivity and features.  The Blender 2.6x Series has many improvements and new features along with a slick new User Interface.  Lets have some Fun with Design!

Blender 2.60 Splash Screen

Blender 2.60 Features

Blender 2.60 come with numerous changes since its version 2.59, here some of feature you can find in Blender 2.60 taken from its official website

Install/Upgrade to Blender Latest Stable Release 2.6x in Ubuntu via PPA

To keep up-to-date Add the Blender ppa to your software sources in ubuntu.  This will deliver stable ubdates to your installation so you are always running current Cutting edge Technology.  

sudo add-apt-repository ppa:cheleb/blender-svn
sudo apt-get update
sudo apt-get install blender