Apple has stuck to a similar user interface for several years now in both OS X and iOS, and they might be getting a radical change if these rumors are to be believed.
Rumors are pointing towards a new job listing asking for senior software engineers for the iLife suite and its description asks for “an enthusiastic Cocoa engineer to help us re-imagine how user interfaces should be built and work.” This could be a huge user interface overhaul and I can’t see Apple only redesigning one of their pieces of software. Even if they only stuck to iLife though, that’s three key pieces of software on every Mac – iPhone, iMovie and GarageBand.
I wouldn’t expect to see a new user interface in the next version of OS X though – or even on iOS. We’ll probably have to wait until 2014 before we can see a new interface.
Many now call iOS outdated – it’s essentially the same interface as it was in 2007, albeit with a customizable background and a few small changes. When you look at an operating system like Android, it’s changed a lot in the last few years – in 2008 it was pretty ugly, but since Ice Cream Sandwich it’s a clean, modern design.