I just started playing with Krita (2.9.9 Animation Edition) and it's fantastic!

I used to love making flip books as a kid as well as using Disney Animation Studio (DAS) and wrote a little bit about that on my website at http://wiki.greptilian.com/krita

My six year old loves the Super Diaper Baby graphic novel so we brought to life "Flip-O-Rama #4" in which he gets revenge on the doctor whose "spank of life" sent him flying out the window: