October has been a busy month with the launch of Windows 7 but Windows 7 isn’t the only new version of a desktop operating system being launched this month. Ubuntu 9.10, the very popular Linux distribution, was released yesterday and should prove to be popular among Linux fans and hopefully gain some new users too. For those who don’t know, Ubuntu is a Linux based operating system which can easily replace Windows on your PC. It costs nothing to download and it is completely free to use without any charge.