As was mentioned in the video, iWitness is open-source: https://github.com/adaptivepath/iWitness

Very cool. Sounds like what the original Color was supposed to be, but extended way beyond photos, and leveraging already-existing online media services/networks instead of building one from scratch. And FOSS too, brilliant.

One usability issue - Edit - nm, figured it out. scroll with arrow keys.

It only works with WebKit. What features does it need that are supported by WebKit but not Gecko?

"There's never been an easy way to explore social media content from a particular time and place."

I have a hard time believing this.

Got any other examples?

Google Plus sort of does this with it's "Nearby" stream, but I can't think of any other such services that are built around search-by-location like this.

I've definitely seen searching by lat/lng, e.g. http://search.twitter.com/search.json?q=cant%20wait%20for%20...

I would guess it's the "by time" filter that makes this unique

A useful app, though overshadowed by the clunky looking & feeling UI.