DeskMenu is a mix between a popup and a shortcut... It is a popup for the syntax is the same, as the appearance and the way it behaves; it is a shortcut for it sits on the desktop, i.e. can't be brought on-top (like desktop shortcuts).
Even if its appearance is the same as the popup's one, its structure can be configured in the step.rc, so you can have some programs in the popup and some others in the DeskMenu.
It is specially targeted at those that want shortcuts but don't have the time to edit some graphic to make their own (like me ^__^).
Of course I did it hacking original LS sources (popus and shortcut).
NOTE: as i progress I'll implement some new things in, like the auto closing and de-highlighting when the mouse is not over
WARNING: the included readme is not finished yet, so you have better know LS pretty well (or have a lot of patience, or write me)

Lpopup is a left-click popup for Litestep, done hacking the original LS sources a bit.
It simply (and currently) shows active tasks.
I know that the new re5ource/(e) popup supports multiple ones, still LPopup is smaller and easier to configure (I hope).
NOTE: this new version does support transparencies!!!

LPopup v 1.1 released.
Many changes in this version:

it doesn't rely any more on modified versions of desktop.dll and popup.dll; instead it's now linked to the !LPOPUP bang command! (by popular request). For this reason a desktop module able to assign bang commands to mouse clicks is needed (the only one I know is jdesk)

it keeps its own windows list, thus being independent from desktop.dll or from litestep.exe (I'd really like for ls.exe to keep its own windows list...)

a list of commands supported by LPopup is included in the readme

it supports transparencies!!! (yet your popup needs to have a fixed width, as every other popup out there)

Thanks go to: Neil McCaw, Artur Meinild, Coragon Rivito, Fireball and Michaelper Johnson for keeping up with my slow time in writing back to them, adding features and making things work!!!

DeskMenu v 0.2 released.
Added DeskMenuX and DeskMenuY (in step.rc) to configure where DeskMenu pops up whenever it starts (I forgot to do it in 0.1) ^_^

DeskMenu v 0.1 released.
Some things are missing:

it doesn't close when it loses focus or when the mouse is not over it anymore (this is the first thing I'll fix)

it gets almost all the settings from the Popup's ones (what did u expect... this is a beta!), but its structure can be configured in the step.rc using *deskmenu instead of *popup

there's something wrong... not sure what but I'll find out

The code is based on the new popup by Fahim (released on 26/04), so I don't know if DeskMenu supports transparencies.

LPopup v 1.0 released.
It just shows active tasks, as before, but works much better, for many bugs were fixed.
The code has changed and now is based on the new popup by Fahim (released on 18/03). Please note this as this new popup has many missing features from the old one (transparencies above all).

LPopup v 0.1 released.
It just shows active tasks, no more, no less.