Several times, and quite annoyingly, my phone will unlock itself while in my pocket with my headphone plugged in and me listening to Pandora and call the last number I dialed. This only happens if the phone is in my pocket...or once when I was boating I couldn't put the phone in a plastic ziplock bag without it dialing the last number... I've only noticed it happen with the slider lock, I haven't seen it with the pattern lock. This only happens when I have Pandora running. This is quite annoying, as I've pocket dialed a bunch of people at midnight and other odd hours... but I love Pandora... Anyone else ever heard of this before?