This article is the clearest presentation I've seen so far of the multi app future. The recent podcast was nice, but reading it slowly and carefully helps me.
I am in single app VR every day, so for me multi app comes alive best in terms of what I can't do that I would like to do the most. Because I'm a print guy, my priorities are all about documents -- accessing, creating. saving, distributing. Speech to text is getting so good, input might just skip the damn keyboard.
I also really want to consult the I Ching with groups in VR, which means throwing coins, altho a browser-based randomizer would work.