After Apple showed off the "world's most advanced operating system" on Monday's Worldwide Developers Conference, the most talked about topic in the tech world after iOS 8 is: will the iWatch come in next?

Among many other updates and new features, iOS 8 has an app called Health that gives users access to a dashboard that collects and displays a user's health and fitness data. Accompanying this app is a new tool for developers called HealthKit, Apple's API or the platform's programming interface that allows all other health and fitness apps, such as Nike, to work together under Health app.

Many commentators look at Health and HealthKit as Apple's gateway to iWatch. They fit naturally well on a wrist-worn device. A new feature called QuickType can predict the next word or phrase you'll type. QuickType will make texting on a smaller screen very easy on a smartwatch. What is more awesome is iOS 8's capability to send a voice recording as an iMessage.

Although smartwatch technologies have not matured yet, the smartwatch is slowly breaking out into the mainstream. Most current designs are weak on aesthetics. They are not just fashionable to wear. This is the reason why people look up to Apple for the ultimate smartwatch design.

Apple of course keeps the iWatch a project, if there is ever one, a closely guarded secret.

in the midst of a thousand iWatch rumors, Apple seemed to be hinting that it was at least thinking about releasing a product of that name by filing a patent of the term 'iWatch' in Japan, Mexico, Russia and a number of other countries.

In 2008, Apple co-founder  Steve Wozniak told the Telegraph that "Apple's future could lie in an 'iWatch'." Just last year, Apple board member Bill Campbell praised the Google Glass project using the words glasses, watches and cell phones in a sentence. Lastly, there is Apple CEO Tim Cook who told attendees at All Things D that "the wrist is interesting".