Do you have dreams of becoming a digital firefly, flitting back and forth across Europe? The folks at Crowdflow can help with that -- all you need to do is use your iPhone, and adopt a share-alike attitude. Using location data collected from 880 iPhones, the team has created a video showing iPhone movement through Europe for the month of April, 2011. This glowing digital ballet is just a start, however -- Crowdflow is asking iPhone users to extract and submit their own location logs to help build a visual map of how cellular networks are distributed throughout the world. If you're not afraid of lending your geodata to an open database, hit up the source link for your own chance to join in Crowdflow's eerie cellular glow.