[jwilliams]

Pause at just past 0:41. Woman is wearing a blue top. You can see a very-much phone like device, with a headphone jack.

[Holbein]

Indeed. Here's a screengrab:

http://i.imgur.com/b1edNBJ.png

She's clearly using something that looks like a phone.

[krcz]

Also at 0:04, the guy in glasses. It seems to be quite thick for a phone though.