[EricH]

I can't say that my team has a specific device policy, per se, but if you're at the shop you're generally expected to be working except during break times. "Working" has a fairly loose definition, mind you--schoolwork, real work (for mentors), and robotics work all count to some degree.

I can see where a total ban would be implausible, and I can see where "anything goes" is inadvisable. Probably the best policy, as noted, is that you not use the phone when you're working (unless your work is being done on the phone)--and, if you need to use the phone, you stop working (unless the work is on the phone) long enough to take care of what you need to take care of.

Honestly, if I'm using my phone during a meeting, it's generally because something that I actually need to know about or deal with has come up. (Unlike most people, I do not have a smartphone--means I only get the important stuff.) Laptop, I'm probably looking at something team-related, or it's available to look something up for someone.