This webpage, http://tex.loria.fr/formats/context/base/readme.pdf, and many others explicitly state that ConTeXt must not be used for some purposes; e.g. competing with Pragma ADE. However, the source code is GPL(ed), which explicitly states the exact opposite! What is the real usage policy of ConTeXt, or isn't there one?
Here is the ConTeXt license status (according to Hans Hagen of Pragma ADE):
Some other remarks:
The only correct website for information about ConTeXt (and especially licensing) is pragma-ade.com. Anything else you may find on the web is not to be trusted.
On the 'Creative Commons' GNU GPL: Creative Commons used to have a special page to explain the GPL in simpler terms than the actual legal text. This is what
On the possibility of alternative licensing: I can understand that the relevant sentence in
About the disclaimer in
On using ConTeXt to create a system that competes with Pragma ADE: it follows from the above that doing so is perfectly legal. But don't be surprised if neither Hans nor me is willing to offer support to you unless you offer us a billing option.
On using the
Having hopefully answered all questions, can we now forget about this again for half a decade or so? :)