After being teased earlier in the year, v4.0 of the Sky+ app for iPad has arrived in the UK and brought a number of new features to subscriber's tablets. Now, it can be used as a remote control to change channels or select DVR functions, as well as view scheduled recordings and add to or change them, or just browse the TV guide's new look. Even with the changes however, Sky has more planned for later this summer when it will integrate zeebox technology to bring second screen features and data to accompany live TV. The free app is up in iTunes now, however customers will need the latest HD guide upgrade on their cable box that's connected to the same local network as the iPad to make it all work. There's a quick demo video of the new features embedded after the break plus more official information on the Sky website.