Right now, they have about 500 symbols. With the money they raise, they're gonna work on technology to make user uploaded designs possible, and existing content easier to find using cataloging and search features. They also plan to release symbols in packs/collections, and want to hold contests to create new symbols.
Each graphic is downloadable when you click on it, and comes to you in the scalable vector graphic (SVG) format. The graphics fall under Creative Commons guidelines, and you're free to do whatever you want with them. Sounds pretty neat. [The Noun Project via Kickstartervia The Atlantic]
