gistfile1.js

// Collection Template
DarkHorse.UserSummaryItemsTemplate = SC.TemplateCollectionView.extend( {
	contentBinding: 'DarkHorse.profileController.summaryItemsController',
	templateName: 'summary_items'
});

// View
contentView: SC.TemplateView.design( {
	templateName: 'summary_items'
})

// handlebars
{{#collection "DarkHorse.UserSummaryItemsTemplate"}}
	<label>{{content.fieldName}}</label>
	<div>
		{{content.fieldValue}}
	</div>			
{{/collection}}

// controller (the relevant part)
DarkHorse.profileController = SC.ObjectController.create( {
	content: null,
	contentBinding: "DarkHorse.currentUserController",

	summaryItemsController: SC.ArrayController.create( {
		content: [],
		contentBinding: "DarkHorse.profileController.summaryItems"
	}),
});