I've asked via their comment page if the webcasts can be made available as a videocast. That way, you could get them using FeederReader directly to your Pocket PC. There may be issues with screen size or frame rate, but it would be a step in the right direction. "Microsoft" is already doing videocasts of MEDC 2005 (
http://www.medc2005.com/blogs.html ). This works great with FeederReader ;-)
Greg Smith
Author, FeederReader - The Pocket PC RSS, podcatcher, videocatcher
www.FeederReader.com - Download on the Road