Most in class training for Vista Touchdown has wrapped up, but there are still many ways to get training for your Vista development projects. Webcasts on Vista, Workflow Foundation, User Account Control, Vista Migration, Explorer, Windows Presentation Foundation, and Windows Communication foundation are available for ISV’s at http://www.msreadiness.com/windowsvista.asp
Vista logo requirements are shown at https://partner.microsoft.com/global/40018574
Windows concept videos are at http://msdn.microsoft.com/windowsvista/learning/training/conceptvid/default.aspx
Tips and how to use various Vista features your applications can be found at http://msdn.microsoft.com/windowsvista/prodinfo/top10/default.aspx including enhancing the user experience, search, security, setting up a customer feedback loop, building connected systems, adding RSS feeds, making data accessible, and building for mobility. Many of the links on the page point to http://microsoft.sitestream.com/PDC05/ that provides training.
Virtual labs are available at http://www.microsoft.com/technet/traincert/virtuallab/vista.mspx