Mark Wilson-Thomas and
Jaime Rodriguez discuss the improvements to VS2010's "Cider" designer for WPF and Silverlight.
Silverlight devs, Cider has finally arrived. Party on.
WPF devs listen in for some nice improvements to error handling, resource resolution, and a new property browser. Try the bits, Cider is open for business.
Related reads:
Mark's post announcing the new features added since beta1A comprehensive tour of new features in WPF 4, covering the series mentioned in the video.
Cider forums for reporting feedback