Nathan got a new Kindle because, sadly, his other one was stollen. As he was trying out his new features, he and John realized they could enter each other's Minecraft worlds. So while it looks like they are completely consumed and in their own little worlds, they are actually in each other's worlds. They were having so much fun I couldn't bear to enforce our normal electronic time limit. Every so often you would hear one of them say "this is so fun! I love playing this with you!" Seriously, what mom can stop any activity that creates that kind of sibling play enthusiasm?!