I don't really need true multitasking on my iPad, but what I would love is the ability to float an app like a calculator on top of an open app. So many times I need to church some numbers on a per doc, or an e-mail, and have to go back and forth between the app I'm in and the calculator app. Is the only way to get this kind of functionality to get an iPad that supports split screen? It's hilarious that the iPad in many ways is so much like the 128k Mac, even almost a decade after the iPad was released ... The original Mac had so little RAM that only one app could be run at a time, except for the little widget apps in the Menu, like the calculator -- which was an amazingly useful tool. What happened to such a simple concept? How could the iPad go so long without it?