I can't read "Enlightenment: the lightest desktop manager there is" without smirking.
I remember first messing with Enlightenment in '95 or so. And it was the bleeding edge, the realm of "latest hardware only". I think my overclocked pentium 120 did an ok job of it, but only barely.
But I guess fast forward 15 years and it is pretty fast. Kind of like Emacs eh? :)
I run Musca on an Arch install (on an eee PC) for true lightweight minimalism :)