I came across this today:
It's a really interesting little tool that lets you view any webpage as a wireframe. It's a little but annoying, with an intrusive modal box that can't be closed (but can be moved, happily) but nonetheless it's a really nice way of seeing how web pages are put together. Sometimes. It doesn't always seem to work very well. Despite that it's a nice concept, and with a few refinements could be as useful as it is interesting.