If we could get 24 Canon 5Ds together then we would have a go at this too. Yes it's been done many times before; what is interesting though is how they did it.
Instead of firing all the cameras off remotely, they simply put them into record. So simple yet so effective. As impressed with the final output as we are, we think they missed a trick. Because they were shooting movies there could have been a bit more movement time wise by staying on a video for longer. Dam impressive though.
Please check out Claudio Giambusso's Vimeo page for more information. Pictures are Claudio's too and I hope he doesn't mind us publishing them here, but 24 5Ds together, is that enough to buy an Epic?