Trigger.io is a cross-platform mobile development framework that enables phone applications to be written in HTML/JavaScript.
Trigger.io is a commercial mobile development framework, comparable in purpose to phonegap. It provides a bridge between html / javascript code and native phone functions (camera, calendar, contacts, push notifications, etc.), allowing development for both 
android and ios using a single code base.
One of its key features is Trigger.io Reload, which makes it possible to update your app without re-submitting to the App Store or Google Play.
The modules that allow access to native functions have been open sourced for the most part by now.
