In this section, we add the ability to add a session to the native calendar on the device.
Add this calendar plugin to your project:
$ phonegap plugin add https://github.com/EddyVerbruggen/Calendar-PhoneGap-Plugin/
In index.html, add the following tab to the tab-bar session-tpl template:
<div class="addBtn tab-item">
    <span class="icon icon-plus"></span>
    <span class="tab-label">Add</span>
</div>
In the initialize() function of SessionView, register an event listener for the click event of the addBtn tab.
this.$el.on('click', '.addBtn', this.addToCalendar);
Make sure you add this line as the last line of the initialize() function (after this.$el is assigned).
While in SessionView, define the addToCalendar event handler as follows:
this.addToCalendar = function() {
    if (window.plugins.calendar) {
        var hour = session.time.substring(0,session.time.indexOf(':'));
        if (session.time.indexOf("pm")>-1)
            hour = parseInt(hour)+12;
        var startDate = new Date(2014,9,23,hour,00,00); //set to PG Day workshop date
        var endDate = new Date();
        endDate.setTime(startDate.getTime() + 3600000);//one hour
        var calSuccess = function (message) {
            alert(session.title + " has been added to your calendar.");
        };
        var calError = function (message) {
            alert("Error: " + message);
        };
        window.plugins.calendar.createEvent(session.title, session.room, session.description, startDate, endDate,
            function(){alert(session.title + " has been added to your calendar.");}, function (error) {
                console.log("Calendar fail " + error);
            });
    }
    else console.log("Calendar plugin not found");
}
Test the Application
When you click the add or plus tab, you should see a notification popup and a new entry added to your native calendar on October 23rd: such as below:
 
  
  
 
On the simulator use shift+cmd+h to get to the home screen to find the calendar to verify.