We get it. You want to download Windows Phone 8.1 as soon as possible just to see if Cortana is really as cool on a mobile device as she is in the Halo series. Or, perhaps it's the new Action Center and swipe keyboard that strike your fancy. Whatever reason you have for wanting to play with the latest version of Windows Phone ASAP, now's your chance. Microsoft has just announced that a developer preview of the new update is finally available for download, but as the name of the build implies, this is meant for third-party developers so they can get a good head start in prepping their apps ahead of widespread release. That said, you can still get in on the action, even if you've never written a line of code in your life -- there's just a few risks involved.