I’m currently running the development version of Ubuntu, codenamed Feisty. The final version was planned to be released on April 19th, but this might change since the RC has already been postponed.

There seems to be no official announcement what exactly causes the delay, but I have some ideas, because there are some problems I’m currently experiencing myself:

1. The newest Kernel is broken

2. My DVD drive doesn’t work

3. The Nvidia drivers don’t work

More Here.