Apple has been previewing an update of its iPad device - and iOS 4.2 coming your way in a couple of months, offering some features already popular on the latest iPhone.According to Gizmodo, multitasking is now on-board, with double tapping the home button bringing up a much larger taskbar, while switching apps engages a 'whooshing animation' that whisks your current away and slides another in its places. There's now also a permanent set of iPad controls, should you want to change brightness for example (rather than going back to the settings each time).Folders are also now in the mix, with up to 20 apps available to store in any folder. And there's also a unified inbox, should you have multiple email accounts to check.Other new features include AirPrint for wireless printing those snaps (but nothing else it seems - that might be a bug in the beta though), a new find in page function for Safari and the recently-added (on iPhone) Game Center.So nothing outstanding, but a few nice things to have - and all for free obviously. As we said, this is a beta, so things might change before launch. That launch should be before Christmas.