tried it. set my iphone up there, took a right turn and the phone slid off of it, somehow lodged the steering wheel where i couldnt turn back to the left to straighten out of my turn. wound up slamming on my brakes at the entrance of walmart with somebody nearly rear-ending me. also couldnt find ANY satisfactory way to stick a garmin GPS unit on the thing where the driver could still see it comfortably...the lip of the tray prevented several mounting angles for the GPS. emailed the company, got a response back almost immediately (on thanksgiving day, no less). seemed very concerned, said he'd help, but never heard back. tossed it. happier. safer.
Your bad luck. I've been using it for about a dollar or two in change, three folding knives, Blackberry, reading glasses, house keys, Skoal tin, two bottle openers, a small key chain LED flashlight, roll of cough drops, +/- ten tooth picks, pen. That's what's in it now, except for the phone, which will go in when I head out.
I've never had anything fly out on turns, though the Blackberry, if it's plugged into the 12v charger, is better off between the parking break lever and the console since the cord is a little too short. Where do you keep your I-phone now?
Oh, and my Jeep has a Hemi, so if stuff was going to be flying out on acceleration, you'd think I'd see it in my Jeep.
Like I said, best $25 you can spend on a JK.