Create your own Ubuntu edition - Linux

• make your own Linux / Ubuntu distribution
• show off a particular application
• localise to a certain language
• remove software packages
• add software packages
• update software packages
• change system defaults (theme, icons, desktop background, panels, browser homepage, etc) 

Interested in remastering the Ubuntu !live CD? See: https://help.ubuntu.com/community/LiveCDCustomization or use tools such as http://uck.sourceforge.net/ or http://linux.dell.com/wiki/index.php/DRU_Disc_Remastering_Utility