Ok just listened to it, enjoyable, informative and it has Kristen in it. A winner lol. I had to pause and go check out sparkle though.
http://www.microsoft.com/products/expression/en/demos.aspx
This was a good link to see one of the apps in the suite in action, sadly it wasn't the app i really wanted to see. It's nice Microsoft is bringing a complete environment for this together but I wonder how many are actually going to dump their current vector/bitmap editors and how easy it will be to create in something like illustrator and then use other apps in the sparkle suite.
Really interesting stuff, can't wait to hear more about it.