The Netflix app for iPhone comes on the heels of its iPad app, which was a monster hit. Subscribing to any of the monthly Netflix packages, which start at $7.99, gives iPhone users access to Netflix's instant streaming queue anywhere, even on a 3G connection (though a wi-fi connection provides a better experience). It's an ideal app for commuters or parents who want to keep their kids entertained on the go. One gripe: Customers can't update their DVD-by-mail queue within the app, a surprising omission. Let's hope that feature is part of the next update.