Hm, since the term "security" has proven to be exactly the opposite of the terms "Windows XP" or "Internet Explorer" in the modern language :

http://www.mozilla.org/

http://www.opera.com/

MicroSoft's Methods of enforcing Mal-/Spyware infested Software by disabling access to critical System features or updates after sufficient saturation of the market is nothing new.

They've pulled that stunt numerous times in the past, in order to push their security- and privacy risks onto the Users.

First time i hear 'beos' and 'very nice os' in a single sentence.

I still have my copy of OS/2 Warp 3 (and a machine on which to run it).  The only time I ever saw it crash was when I had the wrong driver installed for a piece of hardware.  It certainly was a poster child for the fact that good ideas and great pieces of software engineering don't always make it in the marketplace.

If you want a good laugh at Microsoft's expense, do some research on all the ideas that Microsoft engineers swore up and down could not be achieved when OS/2 was a joint IBM-Microsoft project that IBM engineers subsequently incorporated into the OS once Microsoft was out of the picture.

@patience - would love to help out on an OS, but I'm kinda doing that already at university.  It would be a little time consuming trying to work on 2. 

I'm planning on improving on JavaOS and building a complete revamped operating system from Java 2, with some friends for university, for a software engineering project.