There are quite a few studies that have come out recently showing that multitasking is bad for performance in humans. For instance, driving your car while talking on your cell phone significantly increases your accident risk. In machines, however, we have come to love multitasking because it enables better CPU utilization. Much discussion has therefore revolved around the iPhone not having multitasking, whereas Android supports it. For starters that simplistic characterization is of course wr...