Finally, the iPhone 7 is here, headphone jack-free and with dual lens for the Plus version. With all rumors confirmed, wagging tongues have been put to rest. But Apple's revelations on the much-awaited smartphone may not exactly be the launch event's main highlight.

Remember when we talked about how mysteriously dormant @Apple on Twitter has been? Apparently, the US tech giant used that to its advantage by appearing to "slip up" through what was made to appear as an "accidental tweet" on the new iPhone 7's features, moments before the launch event began.

The tweet, which appeared on Apple's otherwise-empty Twitter account, was deleted minutes before the launch event started. Indeed, the brilliant PR stunt appeared to have attracted much attention - the company's verified account experienced a surge in followers from 360,000 to 463,000 within just 10 hours.

But Apple's Twitter hullabaloo only proved to be a part of the company's larger scheme of things for the iPhone 7's unveiling. The launch event featured CEO Tim Cook in an episode of James Corden's Carpool Karaoke - an unusual twist for the brand's rather-minimalist way of presenting its latest offerings.

San Francisco's Bill Graham Civic Auditorium went on to show Cook singing to a One Republic song as musician and fashion mogul Pharrell offered the CEO some interesting takes on fashion. Carpool Karaoke's new episodes are set to premier on iTunes come the following year.

The event then showcased Cook's official presentation of the iPhone 7. "The iPhone has become truly a cultural phenomenon...We've now sold over a billion of them...This makes it the best selling product of its kind in the history of the world...It's the best iPhone we have ever created - this is iPhone 7."

Apple's iPhone 7 unveiling provided further official specifications: an all-aluminum body, customizable home button, wider lens, 7-megapixel "selfie" camera, stronger image stabilizer, and forced feedback. All those, of course, come alongside the much-discussed absence of the earphone jack and dual-lens for Plus.

Overall, the launch event really stood out as Apple's successful experiment for taking its PR machine to a whole new level. Stirring hype continues to be among the company's keys to success, and it seems new ideas will continue to thrive in future launches.