Like everyone, an iPhone app will crash on me every once in a while. However, there have been 4 times I can remember over the course of the last two months that the entire phone crashed and rebooted. In each case, I was checking my email. And, here's the strange thing: in each case I was in the vicinity of the same tower. 3 of the 4 times, I was in front of the Cosi near the intersection of Congress and State Streets in downtown Boston. The 4th time I was a block away on Devonshire street. I got the phone replaced after the first reboot, so the 4 reboots happened with 2 different phones. Coincidence or is there some issue with the tower?