Ubuntu 11.04 "Natty Narwhal"

The ubuntu developers are moving quikly to bring you the absolute latest anda greatest software the open source commnuity has to ofter. Ubuntu 11.04 "Natty Narwhal" Beta  1 gives a prevview of the next version of ubuntu.
U buntu netbook edition and u buntu deksyop have been combined into a single edition simply "Ubuntu"(with no"edition" )
To upgrade from u buntu 10.10 on a dekstop system, pres Alt+F2, type in "update-manager -d"without the quotes, and press enter. Update manager will open up and display the message, "New distribution release 11.04 is availaibe." click Upgrade and follow the on-screen instructions. At 28 april 2011 11.04 version alpha will lounching.
sourcer : ubuntu