I love the idea of a static site generator, but they're really, really reinventing the wheel...
Sure, if you're willing to use make as your SSG. :-)
Also, I'm not sure how well make or rake would work with version control, since make/rake, AFAIK, look at file modification times to detect changes, and DVCS pulls clobber those. In other words, suppose I make a change on machine A, re-generate the site, then push; then I pull from machine B. Make on machine B may not be able to tell that the site was re-generated, because the file timestamps are not preserved by the push/pull, so machine B is seeing different ones than machine A did.
Anyways, my point wasn't that make is sufficient (it isn't), but that a lot of SSGs have been pretty embarrassingly feature-sparse. Understandable, I suppose. :)