Interestingly, they mentioned that they are now moving all servers and content to Google infrastructure.
I expect that selling a porn phone would be like selling vibrators. If you really want to move the later you need to call it a neck massager.
I think plausible deniability / actual versatility is key in selling anything for which a big unstated selling point is enabling 'sex'.
Porn undoubtedly helped speed the adoption of VCRs and later Internet connected PCs, but they were sold as a way to watch Bambi with the family or for the kids to do homework.
"Sorry, I didn't quite catch that, a torn phone?"
"No, the porn phone"
"The what phone? We have a great new Samsung Galaxy-"
"THE PORN PHONE ALREADY!!"
I still wouldn't shop there though.