Ushahidi is an open source web application for information collection, visualization and interactive mapping. It helps you to collect info from: SMS, Twitter, RSS feeds, Email. It helps you to process that information, categorize it, geo-locate it and publish it on a map.
Yes! Development moves pretty quickly but the tech stack is getting more and more stable. If you're keen to help build something awesome, jump on board..
Please see our Installation Guide to get set up first!