The perks for Windows Phone 8.1's early users just keep on coming. Microsoft has posted versions of two desktop Windows 8.1 apps, Movie Moments and Reading List, that are built solely for its new mobile OS. Reading List is arguably the bigger of the two releases -- you can now save articles on your Windows Phone to digest them later on any synced device, whether it's the handset or your PC at home. Like its full-size counterpart, the mobile app both highlights articles in its Live Tile and lets you pin favorite reading categories to your home screen.Movie Moments is a tad more straightforward. The app lets you distill recorded videos down to minute-long clips with captions and your choice of soundtrack. After that, it's just a matter of sharing the resulting masterpiece to Facebook or OneDrive. It's doubtful that the tool will replace Instagram or Vine in your life, but it may be handy if you'd like to have a little more control over your short-form movie projects.