Ubuntu 9.10 with codename “Karmic Koala” have been released few days ago..
Yes, it is a free Desktop O/S that can be downloaded from http://www.ubuntu.com/getubuntu/download or can also request for Free CD to be shipped to your house. [Free CD shipping might have discontinued.]
It is not that large. about 690Mb.
[namran@nb-namran iso]$ ll -h ubuntu-9.10-desktop-i386.iso -rw-r--r-- 1 root root 690M Oct 31 20:51 ubuntu-9.10-desktop-i386.iso
as usual let’s see some screenshot..
Boot menu from live cd :
nice splash image :