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I don't understand how it works. Does it only use the GPS to find photos from around your spot, or does it use some sort of camera to find something that matches what you take? I imagine the former, since I didn't see anything that could sense light in there.

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(Haven't looked through the code) I think the idea is that you press the button, it gets the current GPS coordinate, searches the internet and gives you a virtual photo of what's around you, given the photos it found taken nearby. Then it's shown on the screen taped to it. So it's like a camera without the lens, you press the button and get the picture.

Right, that's what it looks like, thanks. From the description, I thought it would also know which way you're looking, and maybe the conditions (time of day, weather, etc). Something that took a low-res photo and matched it with a higher res/better-taken photo would be pretty interesting.

You're right that is how it works. But it only search into Panoramio base so far.

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