Popphoto.com, the magazine version of which we have contributed to in the past published a very interesting article yesterday. They reported that Apple had pulled the uber pro app 500px from the app store because of nude images. 500px is actually a very attractive photo sharing app and while yes it may/does/did contain some nude shots as PopPhoto points out there was ‘nothing pornographic’ there- depending on your definition of porn but it wasn’t a lot different to what you might find on the popular Flickr iPhone app. PopPhoto also point out clearly perhaps the strongest argument against this removal by Apple being, “that the app comes with “safe” viewing…