Reading through your Rearth blog post, and reviewing the code, and this is amazing! Exactly the kind of information I've been looking for.
You mention a continuation of the series, are there still plans to produce those? I'm dying to soak up this information!
Also, you have in the post:
In the picture here, i'll try to show what we're trying to accomplish in this job:
But no picture embedded, just thought I'd let ya know!