If it ain't broke, don't fix it!

A universal saying that has been popularized by consumers of a variety of products.  From a technological standpoint, many preach this phrase to major companies like Apple, Samsung, and Google.  It makes sense right?  Why would one need to change something if it works perfectly fine?  While many people in society believe this to be the case, there are many contradictions to this.  

For example, the famous Apple software iOS has been around for a few years now and has rarely changed. The minor updates every couple of months add some useful features that made using an Apple device easier to use.  When iOS 4 was released, it incorporated multitasking which allowed applications to run in the background and enabled a much more satisfying experience.  While this was groundbreaking in terms of Apple product development, the concept of multitasking had long been introduced in competing products.  

Now with today's new iOS 6, the new Maps application has taken harsh criticism.  If you have not heard, it is believed that the maps direct users to obscure locations miles off their intended destination.  This is definitely a problem that Apple has been working to resolve.  Google Maps has made a comeback on iOS devices and proves to be much more reliable for the time being.

(Apple iPod Touch 2nd Generation running iOS 3.1.2)

Apple's operating system has come a long way without mixing up the formula drastically.

Looking forward, iOS 7 is under heavy speculation that it will revolutionize the Apple user experience.  Consumers are complaining that the mobile operating system has gone stale and is due for an overhaul.  This is where the question comes in to play.  If iOS is so simple and intuitive to use, why does it need a complete redesign?  Analysts are expecting a major update, but is Apple willing to take a risk if something goes wrong like their Maps application?   I highly doubt it.  The operating system works well and many understand why it is one of the top products in the market today.  

What do you think?  Does Apple need to wipe the slate and start fresh a new innovative design?  Is that what it takes to bring sales back to Apple after losing a majority of its customers to competitors Samsung?