GH2 vs GH3 - Long Exposures and Astrophotography (Test shots inside)

Are you talking about the Multi-Exposure feature in the REC menu? You got it to combine more than 4 images? :o

Interesting, but how is this going to turn AP on it's head? Surely we've all been stacking the images on our computers for years already? I don't see how doing this in-camera will make the end result better.