Works fairly well on Android in Ice Cream Sandwich I feel. You click the dedicated button and just tap your app's thumbnail from the list. Two taps with maybe

Works fairly well on Android in Ice Cream Sandwich I feel. You click the dedicated button and just tap your app's thumbnail from the list. Two taps with maybe some sliding if you have a lot of apps open and want to go to one you weren't using recently seems nearly as simple as you could make it.