Apple co-founder and CEO Steve Jobs has cited concerns about pornography on Apple iPhones as one reason the company disallows “unsigned” third-party software, unlike Google and its Android mobile operating system.

Speaking at a Q & A session Thursday following a preview of iPhone Operating System 4.0, Jobs was asked if Apple has any intention of allowing “unsigned” applications to run on the iPhone.

According to Apple Insider, all third-party software must be approved by Apple for sale on the iTunes App Store.

Jobs responded to the question by noting that there is a “porn store” for competitor Google’s Android system.

"You can download it, your kids can download it," he said, according to Apple Insider. "That's a place we don't want to go, so we're not going to."

The iTunes Store reportedly still sells applications for Playboy Magazine and other risqué established publications.