The article notes that dealing with _capabilities_ can become "arcane and confusing". This means that Caja may have a larger role at the big companies, such as

The article notes that dealing with _capabilities_ can become "arcane and confusing". This means that Caja may have a larger role at the big companies, such as Google and Yahoo, or people wanting to play ball with OpenSocial. The complexity will outweigh the benefits for most scripters, and the standard will not be implemented in any major browser.