Roxio Buzz is a viral video editing and upload application written in WPF. This app makes it easy to perform simple video edits, transcode and upload the video to a sharing service. Just yesterday Roxio announced support for uploading to Silverlight Streaming and released a beta version. This is a very handy application and the visuals are nice, but the installer took way longer than I would have expected. Probably 4x-5x longer than Blend, which is the WPF app I consider to be the benchmark for installation time.