Hey HNers, I created a game / prediction net where people can tweet in final score predictions for the upcoming March Madness NCAA games. To play you have to post a tweet that includes "@scorecaster" or "#scorecaster", the hashtag for the game (they are listed on the site), and the score prediction (in the same order as the teams in the hashtag), example: "@scorecaster #UMvMU 65-55".<p>I wanted to make something that adds a playful, social element to watching sports. I tweet and chat with friends back home when watching basketball games, and I wanted to have a way to sort of trash talk/compete with one another. Something more casual and less formal than betting, and more social.<p>I'd love to get feedback from all of you. My biggest concern is that it might not actually be very fun to try to predict the final score of a game. Sometimes it feels quite arbitrary to me. I'm looking for ways to make that more interesting. If I get a critical mass the first thing I'd want to add is the ability to restrict the leaderboard and predictions list to people that are connected to you on twitter.