In between major releases they have tons and tons of bug fixes (Vim probably has hundreds per release).
Editors can suffer a lot from code rot since they have to integrate with a lot of things. An Open Source version could be quite interesting from Sublime's community point of view. I don't know about the developer's income while this happens, though.
http://en.wikipedia.org/wiki/GNU_Emacs#Release_history
http://en.wikipedia.org/wiki/Vim_%28text_editor%29#Release_h...
In between major releases they have tons and tons of bug fixes (Vim probably has hundreds per release).
Editors can suffer a lot from code rot since they have to integrate with a lot of things. An Open Source version could be quite interesting from Sublime's community point of view. I don't know about the developer's income while this happens, though.