I have listed this as "coming soon" for a while now, but really it is not coming too soon. Though I have a draft, I want to do a complete pass on it before releasing it. So, this is coming in a few years, hopefully some time in 2009, around the time version of 3 of Simbrain will be released. However, an article which includes a few of the lessons and labs from this open conent textbook is forthcoming in Brains, Minds, and Media; when it is released I will link to it here.