Well the internet is for porn, what’s new. As for screen size, of course it isn’t really the absolute size of the screen that matters but the field of view it occupies. Given that you typically hold an iphone perhaps 12 inches from your eyes, while a monitor is perhaps 3 foot away and that means a 1:9 ratio. Or the iphone becomes equivalent to a 36″ screen — which is perfectly big enough for the largest tits I think.

No that’s not the real problem — the real reason that mobile porn is limited is privacy, people have an illusion of privacy on their PC, but much less so with a phone.

Then the other problem specific to my area of interest — webcam chat — is that there is an expectation of interaction and the tiny devices like iphones without keyboards are always going to be limited. Sure you could switch to voice, but then we’re talking phone sex basically and that’s another topic.