I don't usually geek out like this but just needed to today. Here are some screen captures of the journal of Daniel Faraday (Jeremy Davies) from "Lost" last night.
The reason this interests me is that the pattern in Faraday's journal looks strikingly similar to the diagram on the back of the Hatch door. Compare:
The two images overlaid directly didn't really line up in the above configuration (vertical). Here are two tracings of the lines from both:
Hatch Door Lines
Faraday's Journal Lines
Doing some flipping, rotating, and rescaling makes them line up just about perfectly. It doesn't take much re-jiggering at all to make this:
Here's the same shape from Daniel's journal laid over a map of the island that may or may not be 100% accurate. Some things seem to line up exactly -- The Flame, Staff, The Pearl -- and others not so much. This leaves Hydra out in the cold but I'm not sure how much of a "Hatch" this is versus a gateway.
The thing that I find very interesting is the alignment of one circle with the mysterious crater.
Another map showed up in "The Other Woman" episode. It's probably about as accurate as the above.