Watch the HD video below and you'll see a beautiful visualization of how 880 iPhone users moved around Europe in April.
The video, produced by European Web site CrowdFlow, shows iPhone positions as points of light on a map of Europe. CrowdFlow got the data by convincing volunteers to upload iPhone logs, which periodically show iPhone locations. CrowdFlow's points of light fade and spread out the longer it's been since an iPhone's position was recorded at a particular spot.
The project takes advantage of an iPhone feature that collects the location of nearby Wi-Fi and cell networks. This feature caused a stir when it came to light in April that iPhone users were being tracked without their knowledge.
CrowdFlow is combining data from iPhone logs to create an open database of Wi-Fi and cell networks. The goal is to make it easier to visualize how these networks are distributed. This video showing iPhone locations flickering like fireflies is one result. … Read more