Kubuntu is being discontinued as an official, Canonical-supported version of their OS. Which sucks. I like Kubuntu.

As far as Windows 8 is concerned:

They should have made Metro an optional shell instead of the classic explorer.exe (metro.exe?). For the traditional desktop, they could have given it a look that complements the Metro interface with its aesthetic, but maintains the same functionality we have all been familiar with for years. I would like Windows 8 on a tablet PC like the EP121 or the Series 7 Slate, but on anything else...I'll pass.

Also, if they are going to use a rapid-release schedule, then NEED to lower the price of their OS. The guy who just spend $200-$300 on a new OS is not going to be inclined to do so after only two or three years of use, especially when the operating paradigm is such a radical departure. Make it $50-$100 or, better yet, do what Apple does and make it a $30 upgrade.