Fans of ITV rejoice, the ITV Player app has been upgraded for iOS users.What does that mean in practice? It means you can now watch live ITV on the go, as opposed to selected past highlights. Not all ITV – sadly you can't watch reruns of The Sweeney on ITV4 or Heartbeat on ITV3 (for better or worse). But you can watch ITV1 and ITV2 live via 3G or Wi-Fi. You'll have to sit through some ads before the service kicks in though (as opposed to Sky Go's instant start, for example).Other features include catch-up content from ITV1, ITV2, ITV3, ITV4 and CITV (Wi-Fi-only), the option to navigate in portrait or landscape, a search option for programmes, the ability to view live events not being broadcast and AirPlay Mirroring, improved location detection (to check what channels are available) and Retina display quality graphics on the iPad. All of that for free. Just make sure you keep an eye on that data use via 3G though.