Chute (YC W12) Brings Its Photo Aggregation Tools Into Real-World Locations (techcrunch.com)

recently learned in another thread that Google+ has exactly this feature although it seems no one really knows about it. Kind of odd thinking they have those kind of great features integrated in a pretty solid social network and aren't really advertising them to leverage their current position.

I suppose you could look at it like that, it's certainly powering the types of experiences that Color was hoping to create. It's a much different way of achieving it, though.