After releasing iOS 8.1.1 to the general public, Apple has opened up its WatchKit SDK and first beta for iOS 8.2 to developers. WatchKit is the tool that allows developers to create third-party apps for the Apple Watch, which is launching in 2015. Larger companies such as ESPN have had early access to the developer software, but now any member of Apple's developer program can access WatchKit through the portal.
Developers can also now access the first beta of iOS 8.2 on the dev center. The update seems mostly geared towards testing WatchKit apps, according to the release notes: