Since you're going for a responsive design, you should definitely look at the available screen real estate. The reason for this is because, it allows you to dis

Since you're going for a responsive design, you should definitely look at the available screen real estate. The reason for this is because, it allows you to display your responsive design without worrying about not detecting new devices - which is why I personally believe trying to detect User Agent strings will become out of date. This article is pretty useful: http://www.html5rocks.com/en/mobile/mobifying/ http://www.html5rocks.com/en/mobile/mobifying/