Are you ready for Karmic Koala?
Can't wait?
Download the beta: http://www.ubuntu.com/testing/karmic/beta [3]
Links:
[1] http://pulse.veltsos.com/category/it/software/software/os/linux
[2] http://pulse.veltsos.com/category/it/software
[3] http://www.ubuntu.com/testing/karmic/beta