Ubuntu 12.04 named 'Precise Pangolin' has been released on 1st Dec,2011. This time Ubuntu 12.04 is based on Linux Kernel 3.2.0 relaese candidate 3. There are many more changes are done in the Ubuntu 12.04. It also support for APLS touchpads.
Now next step is to see weather the unity interface take Ubuntu 12.04 upside or downside? In this alpha version many bug fixes are done and hence they try to make 'Precise Pangolin' more precise and flawless.The next version Ubuntu 12.04 alpha 2 will be release on 2nd Feb,2011.