I've been using Windows 7 for a while now and my test experience is nearly great, with some exceptions like for occasional NVidia driver crashing the kernel and a few restarts because of it. The other day, I found something new : my sidebar gadget was missing completely! 

It's been a few weeks since I've installed Windows 7 on my work development box. During the installation everything went fine and all the applications I had on my Windows Vista installed and worked fine under new windows 7, except for Skype for which I had to download and install their version 4.0 Beta.