Google opening its Android YouTube player APIs for developers to use in their own apps with native playback
Not that dedicated devs couldn't code this into their apps, but until now it always required extra steps, embedding into html, or using a Flash embed, which was not neat if you don't have support on your mobile device.
Google says that the open APIs will be optimized for various devices, including smarpthones, tablets and Google TV, supporting everything right back to Android Froyo. There will be automatic support for full screen and orientation as well, and the whole shebang will require just three lines of code for devs for the basic integration. Have a look at the video below for the nitty-gritty details.