Well, now I am really confused.
I just noticed here on codecanyon a guy who has a popular wordpress widget on the http://codecanyon.net/page/top_sellers page, but….
he is an exclusive author, he is selling here the pro version of his widget BUT meanwhile he also has a free version of the same widget on wordpress dot org (the free version being the same as the pro but with less features).
Nothing personal with this guy, but if it is allowed, I would like to know too, because this is a good marketing and exposure method.
So, I have to ask: is such thing allowed??