First, that ain't porn. At some places in Europe, that's called "the beach." Here in the US, we call it "the 2004 Super Bowl." It's kind of journalistically irresponsible to even call that porn, Gizmodo. Nudity? Yah. But I'll say it again, that ain't porn.
Second, who the hell pays for an app to do that? Is it that hard to use Google and get about a billion times more than that for free?
Third, it *shouldn't* be a big deal if there are age restrictions. I know some self-righteous parent will probably throw a hissy fit -- we had one throw a fit around here about Harry Potter -- but there is much "worse" than that available just via the Web.
Lastly, I prefer this on there to all the stupid farting apps. Just throw up an Adult section and make your money if this is the worst that gets sent in.