Small screens and big decisions
My take: the smaller the screen, the more hurried and less informed the decision ends up being.
Yes, there's more currency, more immediacy, more with-you-right-now-all-the-time and more data being collected. But......
If you're working with a spreadsheet or a thread of correspondence or a set of data, I'm not sure you're doing your best work if you're doing it on an iPhone.