The trend is already lucrative in Europe where people can download pornography on their cell phones like they do ringtones and music, The New York Times reports.
As phones become more hi-tech, allowing people to send and receive email, browse the Web and take pictures on phones with bigger screens with brighter color, industry analysts say pornography is sure to come.
Roger Entner of the market research firm Ovum said cell phone porn is in line with consumers needs -- giving them privacy and easy access.
Although a ratings system may be in place soon, anti-porn lobbyists are taking action, and regulators and Congress might be next.
Notable deaths of 2014 [PHOTOS]
Larry Ellison to step down as CEO of Oracle