I just outpro from reservist yesterday.
It's good that they allow smartphones in camp now, although (a)
not all camps allow it, and (b) the screen size must be no more
than 4.3 inches.
I get the first point (some camps have more *ahem ahem* stuff in
them), but the second point does not make sense to any of us.
Seriously, besides screen size, what's the difference between a
Sony Xperia Arc and a Samsung Galaxy Note? 
We posed this question to the division commander (a one-star
general) when he came for a chit-chat session with the unit's
commanders. He himself couldn't understand the rationale behind
that restriction.
which device are you using?