I'm sure she'll be rolling over and over all over the place now! I guess I'll have to tether her, if I want to get anything done! j/k (well, maybe...no, really, j/k!)
I should mention that this was the third time she did it, and she has rolled over a ton since! I missed the first time - one second she was on her back, the next second she was on her tummy! I put her back on her back and ran to get the camera; by the time I got back, she was on her tummy again! She's sneaky!!