i was wanderign this thing:
cs-cart is a commercial product, open source (you get all the code)
right now there is this (very nice indeed) thing that the cs-cart team does put all new modules in the main code, and releases everything new with each update, for free.
there aren’t (yet) any external commercial modules.
as far as i know if anybody asks (and pays) cs-cart for a new module, they will put it into the next releasem right?
but what if i develop a new module, or hack, and don’t want to sell it?
it’s sad…
maybe i could give it to cs-cart… with something back in exchange?
say another licence? 
(… just some thoughts from an open source developer…)