¿Has anyone programmed in this window manager? ¿How was your experience? Oh, and besides the e17 official tuts & docs, ¿is there any other source for tutorials?
If you're talking about programming within the Enlightenment window manager, then it seems to me it's just a matter of getting it all set up right. Each Linux distro (assuming that's what you're using) should have some sort of documentation for getting the e17 environment set up. Then it's no different from working in Gnome or KDE, really (well, slightly different, but you get the idea).
I'm actually going to assume that you're talking about the Enlightenment Foundation Libraries, however, and programming with them? If that's the case, from my experience tinkering around with them, documentation outside of their website is few and far between. However, within their website, I found the following to be most helpful:
HTH.