I just posted the first Kickstarter Update. It includes a free preview PDF download of the intended first guide book. It's open to all viewers, not just backers... check it out!
Edt: Day 6, 85 backers, 93% to goal, only $259 left.
Strangely there's double the number of $25 backers vs. $15 backers, additionally strange there are 2 more backers at $70 than there are backers at $15 (I'm more familiar with the bottom tier as having the most backers, my current Kickstarter defies these odds.)