Former Android chief Andy Rubin, who left Google last year and launched the Playground start-up incubator, has high hopes for artificial intelligence.

During this week's Code/Mobile event in California, Rubin told Re/code's Walt Mossberg that AI will be "the next computing platform" after mobile. 

Computing evolves every 15 to 20 years, he said, citing the shift from mainframes to mini computers and then home PCs to the Internet and now mobile. Playground is intended to "prepare for the next thing," Rubin said, which he believes will be AI.

That's not going to happen overnight, though. "Mobile's not going away," he said, suggesting that a true AI shift could take up to 30 years.

In the meantime, Playground Global—which describes itself as "start-up studio helping entrepreneurs produce meaningful, beautiful things"—will be tinkering with AI. That includes castAR, which built projected augmented reality glasses, and ConnectedYard, which provides an automated solution for dispensing pool and hot tub chemicals.

Rubin co-founded Android in 2003 and served as CEO until the start-up's acquisition by Google in 2005. As a Google employee, he led the team which developed the Linux-based Android mobile operating system, now the leading OS used in smartphones around the world.

He stepped down as head of Android in March 2013, as Google created a new division combining its Android and Chrome teams, under the leadership of now-Google CEO Sundar Pichai. He then worked on the search giant's robotics effort for awhile before departing a year ago.

Not everyone is ready to embrace AI, though. Earlier this year, Bill Gates admitted that, like Elon Musk, artificial intelligence freaks him out. Apple co-founder Steve Wozniak, though, has come to grips with the long-term benefits of the technology, while Mark Zuckerberg believes that AI can help Facebook.