This reminds me of when wobbly windows were the big thing in linux. It was good plain fun back then, it seems fun again with this.

Drawing apps do regularly allow for canvas rotation, so I’m sure this’ll turn out to be useful for some class of application that I’m not considering.

Oh, like Sun's Project Looking Glass. https://www.youtube.com/watch?v=JXv8VlpoK_g

I think it’s apps that don’t implement the JPEG orientation tag correctly.