The concept video shown above is not from Apple's R&D department but from Marcos Antonio de Lima Filho. He imagines an iPad interface that allows for the kind of multitasking that you actually want, in which open apps are browsed as huge panes instead of tiny thumbs.
Wearable tech may not mass adopted just yet, but it is gaining some traction. This form here is targeted to parents with kids. The idea is called Lineable. It is a wearable device to track and find missing children. Read more