Yes, but it is still a little awful. No. A lot awful.

If she is looking over your shoulder at a room full of potentially more interesting people, she is ill-mannered. If, however, she is not looking over your shoulder, but into a smartphone in her hand, she is not only well within modern social norms, but is also a wired, well-put-together person.

Add one more achievement to the digital revolution: It has made it fashionable to be rude.

Ahem! Are You Talking to Me? (Or Texting?) - NYTimes.com