I agree with Laganon's last post. If we take VL Standard, Deluxe, Light, and SOHO into account we already have to cover the following window managers and desktop environments:
KDE 4 (kwm) - VL 6.0 Deluxe, maybe 6.0 SOHO
KDE 3.5.10 (kwm) - VL 5.9.1 SOHO, maybe 6.0 SOHO
Xfce 4.4.3 - VL 6.0 Standard/Deluxe
LXDE/Openbox - VL 6.0 Standard/Deluxe
IceWM - VL 6.0 Light
JWM - VL 6.0 Light
Enlightenment E17 - VL 6.0 Deluxe
That's seven already. I think that's a bit much as it is.
Re: VL-Hot -- it's capability within a lightweight WM doesn't come from the window manager but rather from the pcmanfm file manager. That can be documented in a window manager neutral way.
Just my two agorot worth...
(An agora is 1/100 of an Israeli shekel, or about a quarter of a US penny)