Included in .Net 4.0 is the new Windows 7 style Ribbon. Unfortunately right now it seems that it is only available for WPF, but even then it is really cool for Microsoft to finally give us a way to create applications that match their styling.
Below is a small WPF application I made (with a lot of guess work, seems that the documentation isn’t available yet) using the WPF Futures and Licensed Office 2007 Ribbon Control components. The first view is with the default Windows 7 ribbon, and the second view (with a single line of code) is the Office 2007 silver and blue style.
Personally, I prefer the Windows 7 look over the “Big Bubble” thingy, but you could easily allow users to decide which one to use.
I will probably try to do a write up of how I got this working, but tonight I am too busy playing. I may even build a notepad replacement as that seems to be the only app in Windows 7 that didn’t get a Ribbon.