Google finally-officially-publically announced their OS. Only for notebooks… for now. 

Update 2009-07-08: OMG! This is getting exiting, seems that Microsoft has a big announcement monday (link)!

Read the following first...
http://www.webmonkey.com/blog/Windows_7_to_Dump_E-Mail__Photo_Editing_Software

IMO, yes it is a great decision. May be the best decision they have taken since a long time.

In fact, I would even take it further, Microsoft should not even bundle any apps in their OS. Ok, yes they should keep the basic necessary stuff like a notepad, paintbrush, control panel apps, but no windows media player, no msn messenger, no internet explorer. It's up to the user to download and install the necessary apps.

Still, they should offer a sort of automatic "Add/Remove Programs" service. Upon a fresh install it would reinstall all application automatically.
No CD or DVD necessary, everything would be downloaded from the web or locally from an external drive. Through your account on Windows Live it would know what software you have installed and which to install when re-installing Windows.

I would pay to subscribe to this kind of service.