Geograffiti works like this: You use your mobile phone, any phone with any carrier, to leave VoiceMarks anywhere, whether you are there or nowhere near. And you use your phone to listen to others' marks, anywhere, here or there. You can filter by place, people, and topic and you can be notified as marks are made. The video tour lays it out nicely.

The result: "personable and authentic content" with news you can use where you are, for what you are doing.

As the technology blooms, imagine the quality of audiomarking that could be.