You could provide a generic js library with a way to opt-in angularjs,that way,your data access layer isnt tied to a presentation framework.
Can I use this lib with Backbone or React ? why this fixation on making everything depend on angular ? like jQuery in the past ? are we destined to repeat the same mistakes over and over again in the client js world ?
This is just Angular-specific boilerplate to access window/$window and add/retrieve objects without writing a bunch of low-level services. Backbone and Ember already have these model layers but they come with heavy wrappers and getter/setter methods, and the author said he wanted to keep these as POJO objects (which Angular is loved for) without polluting them with ride-along getter/setter methods.
Plan on visiting the ATM machine later?
This definitely warrants some thought. The next time I write a non-trivial application in a framework other than Angular then this will move up on my priority list. Or perhaps when the community wills it into existence :)