Updated from 1:24 p.m to include number of Office users, and cost of Office for iPad.

NEW YORK (TheStreet) -- Microsoft (MSFT) - Get Report CEO Satya Nadella unveiled what many were hoping for: Microsoft Office for Apple's (AAPL) - Get Report iPad.

At an event in San Francisco, where Nadella discussed the intersection of cloud and mobile, the new CEO announced Office would be coming to Apple's popular tablet, making it the first time Office has been on a tablet other than the Microsoft Surface.

"Everything that we do gowing forward, is grounded in this world view -- the world of ubiquitous computing," Nadella said during the press conference. "The world in the next five, 10 years will not be defined in the form factors that we know and love today, but new ones. It will make computing ubiquitous."

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"We describe this, and you see it today, with the growth of the number of users connected to the Internet with their devices. That's what's going to be everywhere. All of these things have applications. Connected growth of these devices and these applications are leading to the rise of cloud computing," the CEO added.

As of 2 p.m. EDT, Office for iPad will be live on Apple's App Store. It has all the features users are familiar with in Office, said Microsoft's Julia White, the general manager of Microsoft Office, during the announcement. White noted Office, which has over 1 billion users, will have "freemium" business model on the iPad, allowing users to read and present Office content. With an Office365 subscription, which costs $9.99 per month or $99.99 per year (students can pay $80 a year), users can create as well. This is just the beginning of Office moving to other platforms, White said.

"When we think about the Microsoft cloud for mobility, there are two unique things that we bring to the table," she said. "The first is we think about users in organizations spanning across all devices; the second is the coming together of the three key constituents together: end users, developers and IT professionals.

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"The real goal for us is to step up and provide applications for every user. The job No. 1 is to be productive to do more across all devices. Users and developers want to build on what others have done, like tackling multiple platforms. IT professionals have been misled in some of these conversations, and Microsoft wants to make them a 'hero' in protecting the end user."

Shares of Microsoft were lower in mid-Thursday trading, off 0.55% to $39.57.

-- Written by Chris Ciaccia in New York

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