We've finally bashed together a first take on the full manual for ENMTools. You can find it here, or in the zip file with the new version of ENMTools.
The new manual outlines for the first time the niche breadth, range breaking, spatial cross-validation, and jackknife/bootstrap functionality of ENMTools. Papers are in progress discussing all of these tools in more detail, but there should be enough information in the manual to get the general idea now.
Now I'm almost immediately going to start adding new features so that the manual is obsolete again. We'll try to keep it more up to date, though. Scout's honor.