Sample code available for custom UIA patterns in .NET

Questions about the new Windows 7 support for custom patterns have come up a few times in this forum.  I took some time over the past few months and created a series of blog posts and some sample code to demonstrate this.

The blog posts start here:
http://blogs.msdn.com/b/winuiautomation/archive/2010/12/08/uia-custom-patterns-part-1.aspx

To make the samples more interesting, I wrote them in C#, which forced me to write a bunch of interop code -- this is also available as part of the sample. 

If you have a chance to try this out, I would be happy to get feedback on it. 

Thanks,
Michael