[jonathanstark]

Yes, there are certain work products (code, for example) that still can only reasonably be done on desktop/laptop computers. But the list of work products that require a desktop/laptop are dwindling, not growing.

Printers are a good analogy. Look around most any office and note that the number of printers has drastically decreased. This is a sign of work products changing - i.e., people don't need to print out as much stuff on paper to get our jobs done. The same is happening with desktop/laptops now. It's industry specific currently but the trend is clear.