No, this isn’t a terrorist threat. Atomic Tom, a New York based band was looking for a little exposure, and a train carriage full of commuters is the perfect captive audience. After having their instruments stolen, the boys turned to technology for an impromptu mobile gig. Using their iPhones as instruments, the band rocked out to a small crowd of bewildered travelers. “I saw Atomic Tom perform on the B train today… at first i thought they were going to bomb the train, but then they started playing and i was like ‘i love new york!’ liked them so much, i asked a stranger for the band name.” said Brittany…