Convexion: PowerPoint -> Silverlight Converter
This announcement popped into my inbox from Electric Rain just the other day (they're the team that brought you ZAM 3D amongst other stuff).
Convexion is a PPT 2007 plug-in (due for release in Sept 2009 according to the site) that exports PPTX files to Silverlight/WPF. There's a good demo on the site here.
