This is relative in perspective. Work "smart" not "hard" is what culminates into efficiency. It's over-simplified but true.
As to Huskyman's comment, I am observing this as well, even throughout "BigCorp". Employees spending an horrendous amount of time and attention to/with their mobile devices. In reality, this is a complete novum. In the past there were clear company policies as to the use of electronic communication systems esp. during scheduled work hours and in regards to work related value.
Last time I looked I have not noticed any policies regulating the use of personal mobile devices on the work place.
Huskyman's observation also runs a lot deeper. It's metaphorical in a sense.

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