somthing similar happened at the peace bridge(buffalo NY to fort erie CAN) a few weeks ago. a truck driver had a laptop and since customs has the right to search all contents of the truck they checked it out and the search turned up child porn and he was arrested.
so pass lock your iPhone when your crossing the border too !
. The cop then brings up the iPhone's Web browser, scans the bookmarks, clicks on one called "porn," which takes him to a Web page that requires a member's username and password, which the iPhone has fortunately remembered
I periodically clear my browser history on the iPhone, particularly if I've been viewing less-than-respectable content (like this forum ...kidding).
That might be another way to ensure you're not hung out to dry should you get popped by the 5-0. I agree with those criticizing the passcode method - that would get quite burdensome for me as many times as I unlock the phone in a given day...
While I don't have anything on my iPhone to be afraid of, I certainly respect my privacy and as such protect my iPhone with a passcode. I also agree with Justice Scalia that search incident to arrest doctrine has gotten out of hand. No way would our forefathers have agreed with where it is at now.