As you know Avalon and Indigo Beta 1 RC was released some time ago, Chris Anderson ported his AvPad to the new release. The source code is available and you can learn something about IronPython ;) I was trying IronPhyton and it works very well !!
Any way this post is not to talk about IronPython, this post is to tell you that I ported my Xaml Viewer to the new Avalon RC. So now you can use it with VS Beta 2 and Avalon Beta 1 RC. It has not new features as AvPad... yet ;)
It was developed with the VSIP SDK Beta 2 for Whidbey.