About 5 years ago I worked, remotely, for a Swedish software company and on several occasions I worked on site for extended periods. Programmers at this company did not have desk phones. The company provided the smallest possible Sony Android smart phone possible insuring that the employees would take them everywhere. And that's what we did. Map, email, SMS, and phone... that's all it did and all we needed. Granted this predated facebook's popularity, however, a phone is a phone and what manager wants their employees taking selfies while at a standup meeting?
What do you REALLY need your phone to do? Give a price to that idle time... How many bloggers, vloggers, really make money ... we only hear about selfies and lost jobs. Viral memes are rare.