I think the best answer is that Steve Jobs didn't find it necessary. If you do, the iPhone not the best phone for you. Your choice.
Why is it impossible to execute two apps at once on
iphones? As I remember Samsung S3 allows that!(You can talk on the phone and simultaneously upgrade another app) Whereas on an iPhone ,you'll be stuck with an app for it to load completely while You sit idly by not knowing what to do.
Any solution to this? Cone on, Apple! I chose you over ALL the other androod phones to be this disappointed!
(Anyone who knows how to solve this, feel free to PM me as well!)