[SmoothOperator]

For any device that has a user-replaceable memory card, one can easily copy porn on a separate MicroSD memory card and hide it from his wife or girlfriend. With the iPhone, the only way to load porn is through iTunes, and the skin flicks must remain in the iTunes application library because deletion from the Movies library will delete the track from the iPhone when it syncs. With the iPhone you can never hide your favorite porno movies from your wife/girlfriend if she gets her hands on your phone, and if she ever peeks into your iTunes Movies library you'll get caught. Any other device will work. During the day, for example, you can use the HTC Evo 4G and capture the Leave-It-To-Beaver moments with the wife, kids, dog, etc., but after she leaves with the kids to the supermarket, you can swap out the MicroSD memory card for some fun while she's away, and when she returns you can switch back the memory card and there will be absolutely no proof of what you watched while she was away.

Try doing that with an iPhone!