Hey everyone, Came across a pretty cool video player called "Youtube Doubler." It allows you to pull up two videos side-by-side. So if you have a video of yourself hitting on Youtube you can compare yourself to Roger Federer, etc. Here's one I did of Federer's forehand vs. Verdasco's. http://www.youtubedoubler.com/?vide...c&video2=http://www.youtube.com/v/LetxCiRKSh8 Generally interested to hear of what everyone thinks of this functionality. We've considered putting something like this together -- let me know if you think a similar player w/more features (freeze frame, for example) would be cool.