We found intriguing media mashup and mixer startup SplashCast back in February, and today the have announced a major step forward via a partnership with NPR (National Public Radio). As an arguable victory in the name of online productivity, SplashCast has just unleashed the official NPR Podcast Player for Facebook, bringing educational and current event programming to the popular social networking site in a slick embedable Flash widget. This is a great addition to all the other somewhat less productive apps and widgets Facebook is gaining as of late, and a great venue for NPR's venerable programming.