Ubuntu was born from the Debian distro. The most serious weaknesses of Debian are the long development cycles and unstable release schedules, resulting in a killer combination. Ubuntu derived from Debian, knows the weaknesses and fixed them. Ubuntu has adopted a consistent six-month cycle. Consistently releasing updates, meaning users will always have the latest and most updated software.

Today IBM and Canonical are introducing a cloud- and Linux-based desktop package in the United States designed for use on corporate personal computers or even netbooks.

Here's the list of all the Ubuntu release dates to date:

Ubuntu 4.10	Warty Warthog	October 26 2004
Ubuntu 5.04	Hoary Hedgehog	April 8 2005
Ubuntu 5.10	Breezy Badger	October 12 2005
Ubuntu 6.06	Dapper Drake	June 1 2006
Ubuntu 6.10	Edgy Eft	October 26 2006
Ubuntu 7.04	Feisty Fawn	April 19 2007
Ubuntu 7.10	Gutsy Gibbon	October 18 2007
Ubuntu 8.04	Hardy Heron	April 24 2008
Ubuntu 8.10	Intrepid Ibex	October 30 2008
Ubuntu 9.04	Jaunty Jackalope	April 23 2009
Ubuntu 9.10	Karmic Koala	October 29 2009
Ubuntu 10.04	Lucid Lynx	Planned for April 2010