Hi everyone. I have a sort-of off-topic question about zope, plone and the GPL. If I write an application that sits on top of plone by using the CMF and the plone components and such, how must my portions be licensed? I've not written anything yet but just to be sure, if i write plone stuff that calls plone and cmf and zope functions and objects, must that also be GPL'd. I was under the assumption that calling GPL software didn't required making your stuff GPL but if you were to write code inside a module that is already gpl'd - like expanding it, then you'd obviously have to gpl it because you're modifying code - not writing new code. Also, I know the zope license is ZPL and more commercially friendly than the gpl, but plone is gpl so obviously there is a boundary there that is being enforced correctly. TIA