Apple's iPhone and iPad software, iOS, has been quietly criticized by the techno-snoots as being boring and only incrementally improving from year to year.
The basic look of the operating system has been the same since it was introduced in 2007. There have been a lot of great features added since then, but because the basic look is the same, some people are upset.
Now that the leader of iOS, Scott Forstall, is out at Apple, the quiet critique of iOS is getting louder. Hacker News, for instance, had a lot of people complaining about iOS.