> How do you accomplish that for a programming language?
That's a more difficult case of course. But I believe enterprise support and custom enterprise features/addons could help in the case of languages.
> corporation controlling at least the proprietary components?
WP plugins are still GPL. But the users can buy, download them from the original source, install them on their site, and update them from their site with one click. Coupled with premium support, this works well. Its a bigger risk and hassle to 'pirate' the plugins from 3rd parties rather than just getting everything directly from the source. (though such 'piracy' does have impact).
In any case, one organization controlling at least the proprietary, custom enterprise components is much better than the alternative.
