Porn

Experts estimate by 2011, the cell phone porn industry will become a three billion dollar a year business.

Mostly because wireless companies are now offering much faster Internet connections on cell phones, which rival what you can get at home.

If you can pull up a website on your computer, chances are you can also pull it up on a cell phone. That means if you've given a phone to your child, they could be able pull up porn virtually anywhere.