You can put this one into my stuffed, overflowing “you’re fucking kidding me” file. Shared by my pal Matthew on Google Reader, it turns out that there is an app on the App Store called Sudoku Grab that lets you take a picture of any Sudoku puzzle, anywhere – from books, newspapers, lcd screens – and have it convert it into a usable, software-based Sudoku puzzle on your iPhone. I just tried it by snapping a jpg of a puzzle on my laptop. It works, flawlessly. And it’s not that it simply converts the puzzle into electronic form to save you from having to use an eraser. It’s that it actually ‘understands’ the puzzle and is able to give you hints or, if you wish, just solve it for you. So, um, welcome to the future guys.

(Am I just naive, or is this really effing cool?)