As it turns out, you can damage your iPhone Duo by opening and closing it too much, at least theoretically. Don’t worry, you don’t have that much time on your hands.

CNET’s Fold-a-Phone rig | Image credit: CNET
Three weeks ago, CNET put the iPhone Duo on it’s custom testing rig, the Fold-A-Phone. Now, after 440,300 folds, it’s finally reached its breaking point.
Sort of, if you’re willing to define “breaking point” loosely.