Microsoft unveils Office for iPad - Business - The Boston Globe

Hoping to accelerate a subscription revenue shift, as Adobe has done

"But millions of people with iPads probably haven’t had a reason to buy an Office 365 subscription until Thursday. Nearly 200 million iPads had been sold through the end of 2013, meaning about 5 percent of those device owners would have to pay for a $100 annual subscription to generate an additional $1 billion in revenue.

Microsoft hasn’t said how many Office 365 subscribers it has, but Nomura analysts Rick Sherlund estimates the number at anywhere at between 14 million to 24 million. He estimates that the annual subscription revenue is running at about $2.5 billion."

Microsoft unveils Office for iPad - Business - The Boston Globe