[bryans]

It feels like the automatic rotation is a middle ground that isn't going to make either groups happy. It's not realistic enough for the folks who want manual rotation, and it's too realistic for people who just want to put the picture together (or are used to traditional digital jigsaw puzzles). So, I think either implementing the option to choose or sticking to one style would be the way to go.

Personally, I'd be happy with either method, but this middle ground hits an uncanny valley, and makes it too difficult to visually recognize which pieces have already been auto-rotated. It'll basically just encourage folks to click on every piece to start with, which is a lot of extra clicking.