Comment on Trampoline

I'm not a trampoline user and I've only messed around with Constellation menus plugin but they seem to be two separate things. In QS you are given a constellation of action items (not really applications). Trampoline is an application launcher. You could say that it and Quicksilver are similar but I'm not sure about the Constellation menus. They both have circular menus with pie shaped slices but it really seems to be an apples and oranges comparison to me. Maybe someone can enlighten me here?