example.jin.atom.js

var userData = $jin.atom({ pull: function( ){
	
	setTimeout( function( ){
		userData.put({ name: 'User', time: Date.now() })
	}, 1000 )
	
}})

userData
.then( function( val ){
	console.log( 'got1', val, Date.now() )
} )

userData
.then( function( val ){
	console.log( 'got2', val, Date.now() )
} )

example.q.js

var userDataDefer
var userData = function( ){
	
	if( !userDataDefer ){
		userDataDefer = Q.defer()
		
		setTimeout( function( ){
			userDataDefer.resolve({ name: 'User', time: Date.now() })
		}, 1000 )
	}
	
	return userDataDefer.promise
}

userData()
.then( function( val ){
	console.log( 'got1', val, Date.now() )
} )

userData()
.then( function( val ){
	console.log( 'got2', val, Date.now() )
} )