Make no mistake, Microsoft still wants its mobile operating system, Windows, to be the software in our smartphones. But mobile developers continue to focus on making apps for Apple or Android devices instead, making Windows phones an increasingly hard sell.
That reality has finally sunk in at Microsoft, and a new strategy is afoot. When Satya Nadella, Microsoft's chief executive, took the top job at the company about a year ago, he signalled that the company's priorities were shifting. Microsoft, he said, was in a "mobile-first, cloud-first world".
Since then, the company has brought more of its apps and services to the Apple and Android devices people actually use, rather than the ones Microsoft would like them to use - those that run Windows.
What's even more surprising is that Microsoft's heart seems to be in the effort.
The fact that Microsoft released the new Outlook in late January, when the ink was barely dry on its Acompli deal, is a clear sign of how quickly the company feels it needs to move in the mobile business. Last week, the company bought the maker of Sunrise, a popular mobile calendar app, suggesting that Microsoft has no plans to let up on its deal-making.
Until it released its new mail app, Microsoft offered OWA for iPhone and Android. The name stands for Outlook Web Access, and as the name suggests, the app was essentially a shortcut to a web page and lacked the performance and richness of a native mobile app.
The new Outlook is everything its predecessor was not - snappy and, for people who are heavy email users on mobile, a genuine improvement on the standard Apple email app that comes on every iPhone. "People end up looking at their email client many, many times a day, but they do it in short bursts," said Javier Soltero, the general manager of Outlook at Microsoft and the former chief executive of Acompli. "For us, the average session length is about 24 seconds. How do you make that 24 seconds most productive?"
Outlook's answer is to use software algorithms to automatically divide emails into two queues: Focused and Other. Put simply, Focused is supposed to give me the messages I'll want to look at in those 24-second glances, while Other is stuff I might want to look at later or not at all.
Microsoft is hardly the first to sort like this. Google's Gmail app for iPhone, for instance, has an email queue known as priority inbox for messages it determines you'll want to see.
Both Google and Microsoft have similar tricks for ranking important emails. They look at who you've emailed in the past, whose messages you open and who you bother replying to. They generally downgrade messages from broad email lists and social media notifications.
The problem with this kind of intelligent email sorting is that it's often hard for users to trust. No one wants to miss a crucial email from a boss. And if the sorting isn't reliable, many users will simply look at two inboxes instead of one.
It would be easy to dismiss Outlook as a fluke if Microsoft were not also making so many other credible mobile apps. Early last year, it finally released high-quality versions of its main Office apps - Word, Excel and PowerPoint - for iPhone, iPad and their Android variants. Then the company made nearly complete versions of the apps free.
Microsoft is still hoping to get people to upgrade to a paid subscription to Office 365, which costs $6.99 a month to use Office on a single smartphone, tablet and PC or Mac. Households that want to share a subscription for Office on up to five devices of each type pay $9.99 a month.
There are excellent free productivity apps on mobile and PCs from Google, Apple and others, and the prospect of those apps chipping away at its Office business is terrifying for Microsoft.
But Microsoft has sweetened its Office 365 deal by including unlimited online storage through OneDrive, its cloud storage service. A OneDrive app on my iPhone automatically backs up everything I shoot with the phone's camera. Its integration with Office is seamless, too.
© 2015 The New York Times News Service