As the new CEO of the company, Steve Jobs oversaw the development of the iMac, iTunes, iPod, iPhone, and iPad, and on the services side, the company's Apple Retail Stores, iTunes Store and the App Store.[18] The success of these products and services provided several years of stable financial returns, and propelled Apple to become the world's most valuable publicly traded company in 2011.[19] The reinvigoration of the company is regarded by many commentators as one of the greatest turnarounds in business history