[NOTE: This entry has been updated (1) as of 3:29 PM Eastern on 11 Jan. See below.]
If this report is true as related, New York Philharmonic music director Alan Gilbert is our new hero.
Tuesday night's New York Philharmonic performance of the Mahler Ninth was stopped dead by an unusual instrument — the iPhone. [...] "Mr. Gilbert was visibly annoyed by the persistent ring-tone, so much that he quietly cut the orchestra," the concertgoer reports. She related how the orchestra's music director turned on the podium towards the offender. The pause lasted a good "three or four minutes. It might have been two. It seemed long." Mr. Gilbert asked the man, sitting [in the audience] in front of the concertmaster: "Are you finished?"RTWT here.
Update (3:29 PM Eastern on 11 Jan): More from The New York Times.