This seems ideal for the enterprise use case, in particular because it's extremely performant, secure, and doesn't require a central/third-party server (e.g. AWS). The 'must always be online' requirement is actually a plus, not a minus for that crowd. Enterprises are generally very concerned about being able to revoke access to a given resource instantaneously. Any app that stores local copies complicates that quite a bit.

People will dismiss this as 'a toy that geeks use', but as Chris Dixon has noted, 'what the smartest people do on the weekend is what everyone else will do during the week in ten years' [1]

[1] http://cdixon.org/2013/03/02/what-the-smartest-people-do-on-...