For those who are not fascinated by the World Cup, and who are fascinated by pre-release (devlopment) versions of popular Linux distributions... I have been following the development of openSuSE 11.3, which is currently at Milestone 7. I generally download the daily builds from time to time, just to get a glance at what they are doing, and how far along they have gotten. It is important to remember that these daily builds are really, really rough work. They are literally what the name implies, daily builds of whatever the current state of the source is, so on any given day there may be any number of small or large problems in them which are in the process of being worked out. But given the proper amount of care and testing from a Live CD/USB boot, to verify that the most important parts are working, they can be interesting to install and try out. Just don't try this with any kind of production or other critical systems...
There was a rough patch a few weeks ago, when the ISO would boot, but the desktop would not come up on any system that I tried. If my memory is correct, this was even the case with the official Milestone 7 release. That eventually got fixed, and I was able to install it for a few days, and then something else happened and the LiveUSB images I created from the ISO wouldn't even boot. Today I finally got the latest daily image to boot and install on my HP Pavillion dv2-1010ez (AMD Athlon Neo, ATI graphics, Atheros WiFi). Everything seems to work so far. It includes OpenOffice.org 3.2.1 and Firefox 3.6.4, which are the very latest versions, and of course lots of other interesting packages.
If you are interested in pre-release Linux distributions, openSuSE 11.3 RC1 is actually due out today, so keep an eye on the openSuSE Development Software distribution page. It's looking good.
Update: It figures. No sooner had I hit "Post Blog" than the announced RC1. The good news is that "RC1" is in fact the daily build that I had downloaded, installed successfully and written about, so everything written above is indeed applicable to that version. Try it!