Shortly after these products became available to the public, problems (ranging from inability to make phone calls on iOS 8 to the rare, but evident, cases of bent iPhones) began to arise faster than they could be dealt with. If unprecedented, this bad publicity could have blown over quickly, but recent events such as the non-consensual U2 download and the iCloud hacking incident are making it difficult. This is not to say that everybody is displeased with Apple at the moment or will be in the future, but how much can one company take before all of it's competitors begin to outshine and outperform?
In fact, ther companies have already taken this opportunity to push themselves ahead by bashing Apple's recent mistakes in humorous advertisements. Some of these companies include Samsung, LG, and even Kellogg (Pringles) and Nestlé (Kit-Kats).
Although I don't personally think that Apple will reach it's end any time soon, it definitely isn't the star it once was and I don't see them being the at (or near) the top in the US for too much longer - especially with other companies passing them up by beating them at their own game.