Video Demos Coming to the Android Market
"Right now, there are about 2,000 apps with newly-added videos in the Market but they aren't being displayed just yet. They're also available via the Market API, so some sites like Appsfire have already begun integrating the video demos into their own listings via the Market API."
Video demos will be a great addition to the Market. Especially since return time was shortened to 15 minutes. While I don't think this is a replacement for a longer return time this should help reduce the returns needed. Have you bought an app lately that you returned or wished you would have? Would a video have been enough to keep you from wasting time and/or money?