Apple CEO Tim Cook offered a tantalizing sneak peek of Apple's future strategy to investors at the Goldman Sachs Technology and Internet conference in San Francisco on Tuesday.

Cook emphasized iCloud and Siri as Apple's core product strategy, considering them profound. For iCloud, he pointed out that it is a strategy for the 10 years or more.

I would view iCloud not as something with a year or two product life; it's a strategy for the next decade or more. I think it's truly profound, Cook said. There are over 100 million iCloud users now and in the past 21 days, 15 million new users were added, Apple's chief executive said.

Cook also said Siri, the personal intelligent voice assistant exclusive to iPhone 4S, would be remembered as another profound change. Just as the physical keyboard, mouse and now multitouch have become a part of our daily lives, Siri, too, is a technology revolution that will soon be a part in everybody's life.

Cook's speech at Goldman Sachs conference is his first major speech as CEO since Steve Job's death. Over the public worries that Apple's charisma and culture would be changed for the worse, Tim reminded the investors that Apple culture continues living up to Steve Job's legacy.

Steve grilled in all of us over many years that the company should revolve around great products, Cook said, stressing that Apple will be focused on the future by inventing great products that make significant contribution to the society instead of just selling one more product in the market.

Cook also addressed concerns about the way Apple's overseas manufacturing partners, especially Foxconn in China, are treating their workers. Dismissing the public outcry and accusation that Foxconn forces its workers to work in hazardous and inhumane conditions, Cook said, No one in our industry is doing more to improve working conditions than Apple.