Have you already installed Windows 10 on your trusty slate? Well, Microsoft released its mobile productivity apps for the new shiny new version of the OS, too. Touch-friendly versions of Word, Excel and PowerPoint are available for download from the Windows Store. The new version of OneNote is available as well, but it's pre-installed on Windows 10. On top of those gesture-friendly interfaces, the apps play nice with OneDrive for easy cloud-based storage and save changes automatically so you don't have to worry about losing any work. Of course, if you want the productivity suite on all of your desktop and mobile devices (especially when Office 2016 arrives in September), you'll need to splurge for an Office 365 subscription.