I see this kind of comment frequently, and I must admit sometimes I feel that way too. But if you notice the status bar on the iPhone screen shots, you will see "TELIA" which seems to be a Swedish cell provider. This means that English is probably not the author's native language, and should a) give him a break and b) commend him on a technically awesome article in a language other than his own (as a bi-lingual speaker myself, I can tell you I'm really impressed).