Smuggle them in? Are they patting people down as they enter a typical PGA event now? I've been to the John Deere Classic a couple times (not in the last couple years) and I've always brought my cell phone in with me (in my pocket, on silent) I saw the signs but its pretty obvious that they don't want it ringing or you to be jabbering away behind the ropes while a player is trying to hit a shot, etc. so I didn't figure it was a big deal. I'm sure I'm not the only one.
So I guess this means it'll be more "out in the open" so you can send texts or whatever while at the tournament without worrying that a marshal will see your phone and give you the boot. But other than that I fail to see what difference it will make, there are probably thousands of cell phones on silent in tournaments today, unless the others are patting people down. If they are, THAT would cause me to turn around and go back to my car and never come back, whatever excuse they try to give for wanting to pat me down!