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These new interfaces enable developers to do nearly everything that you can do at http://blockchalk.com. It’s now possible to build client applications, mash-ups, and other tools based on BlockChalk geolocation data and services.

You can read the full API documentation here: BlockChalk API v0.6

So what does this mean? It means that BlockChalk is now more than just a nifty GPS app for your iPhone. It’s an open platform for storing and accessing user-generated content within a geographic context.

What makes the BlockChalk platform unique?

* It’s dead simple. There are no badges, medals, points, unicorns, pirates, or other viral gaming craziness. BlockChalk is about locations and the messages people leave there, that’s it.