Suggestion:
Speaking strictly from the perspective of the textbook project, it would be best to do as many joint announcements with the California Open Soucre Textbook Project www.opensourcetext.org as possible. This is more likely to get everyone to sit up and take notice, as California is the "big enchilada" on K-12, in terms of numbers, and the other states more often assume - or are influenced by - the California frameworks.There has already been quite a bit done in California to promote this (we've been Slashdotted, as well).
This way we will get maximum leverage in the press, and with people in state bureaucracies, comercial publishing houses, politicians, etc., who are watching (or will be, once we get this thing flying).
Of course, this isn't an absolute sina qua non, but everyone would benefit to a greater degree than going it alone. Comments?
Also, although I make no assumptions about which state curiculum framework will be applied to whatever curriculum area is going to be covered in this project (whether, history, social studies, oe whatever [note: suggestions have been made that keep math out of this for the time being because of certain software limitations]), I'm hoping that a single framework will be offered up as a model for the initial project. And, I suggest the California framework for that because of what I said above.
Of course, pointers to other frameworks could be made, but I suggest focus on one framework for the pilot, as that will get us the best results possible, to prove our initial point...which is that a quality K-12 text can be built within open source.