Sure, Twitter's Periscope app will tell you which of your friends are streaming, but what if you want to find out who's broadcasting the local baseball game? You won't have that problem for much longer. Periscope chief Kayvon Beykpour has revealed that the app will soon get a way to find streams in a given area. It won't be so precise that you can creep on others, but it could be helpful for following protests and other unfolding events without having to get a link from someone else. Beykpour suggests that the map-based browsing is coming soon, so you shouldn't have to wait long before Periscope is as good at helping you discover streams as it is for watching them.