Out of London- The first interesting use for an iPad discovered!
Berg and Dentsu London have used 3D modeling, a "homebrew" app, long exposure and time lapse to produce a truly beautiful effect.
I love how analog this is. It would be very easy to make a similar effect without half of the work, but it would just be similar, not as amazing.
Making Future Magic: iPad light painting from Dentsu London on Vimeo.