The power button in my FP1 is super sensitive. The phone reboots when I just touch or hover near the power button, without pressing the button. The problem started with the power button being unreliable in responding for a few days and has degenerated into random reboots when I or any other object is close enough to the power button.
I recently did a factory reset and an operating system upgrade (to kitkat).
Thanks. I did go through the forum topics on broken power button. However, I am not sure that the power button is broken. It seems to work fine at times and then behaves erroneously at other times.