The big news in Mix 2006 that this feature will be shipped in summer and it will release in the first half of 2007 to allows web designers to write an amazing UI using XAML. i can't wait till it's over guys!
Those are some samples taken from Mikes' Harsh Blog:
WPF/E pan and zoom: http://static.flickr.com/37/116850754_f9628b295d_m.jpg
source article link: http://blogs.msdn.com/mharsh/archive/2006/03/23/559106.aspx