Jeff Brand has a short video on using TransitioningContentControl with Windows Phone 7 April CTP.
In my original screencast (read here or on Channel 9), I showed you how to use the Silverlight Toolkit’s TransitioningContentControl to add automatic transitions between pages of your Windows Phone 7 Silverlight application. A few days after recording and posting that screencast, Microsoft released an updated version of the tools and the emulator. Soon after, I started to get reports from folks watching my screencast that the TransitioningContentControl not only didn’t work with the April CTP release, but it prevented their entire application from running.