I have yet to update to iOS 4, and the white i4s are not available, so I have no hands on experience with it. But bear with me. I don't have any problems with how I understand Apple has implemented multitasking, allowing apps to use less resources etc. However, I don't like a.) the interface and b.) the quick launch tray. The thing I like about backgrounder, is that I only want an app to run in the background if I tell it to. With Apple's implementation, if it is supported, it is automatically done AND every app is added to the quick tray, regardless of backgrounding state. Is there a way to combine the two, and perhaps use Kirikae instead of Apple's quick tray? By "combine" I mean, only induce multitasking/backgrounding if I want to (by, for example, holding down the home button)? Also, kind of related, kind of not, is there anyway to get the iPod popup controls back on iOS 4?