Even those tasks are irritating on an iPad - outside of the limited multitasking, viewing multiple things at once is impossible. I can't look at an email and reference a website linked in it. I can't look at a few websites while composing an email. Comparing multiple travel booking sites side-by-side? Nope. If I try switching back and forth, the iPad has probably unloaded one of the tabs in the meantime due to memory pressure - why can't their state be archived to disk and loaded from that, at least?

It's interesting because for a very long time Apple said "maximizing is usually a waste of space" with the zoom button's behavior.