Since a week I am using Windows 7 and until now, I am really satisfied. Windows 7 feels much faster than Vista and it’s something like a fine tuned Vista.
Here you can read the most notable new features:
http://blogs.msdn.com/tims/archive/2009/01/12/the-bumper-list-of-windows-7-secrets.aspx
For further information, you will find here a good walkthrough:
http://www.howtogeek.com/howto/the-geek-blog/what-you-should-expect-from-the-windows-7-beta/

Administration, Software
Windows7
As you might already know I’m a certified windows mobile application developer. My speciality is hybrid application development for applications which target both the full .NET framework platform and also the mobile platform. Of course nobody wants to write the same code for each platform again so you have to come up with some tricks and solutions to overcome some limitations on the compact framework.

.NET, Mobile
.NET, Compact Framework, Delegate, DynamicInvoke, Mobile, Workaround