United Android Mockup & Design Tool (Free)
A mockup tool for concepts and mockup designs. It includes tons of different styles from various different Google Apps as well as the new version of Android - 4.4 Kitkat. Every single thing is editable - even the statusbar icons like wifi and network. Elements are either Smart layers or resizable vector shapes.
I hope this “tool” is useful for you, it certainly is to me when I’m planning and designing applications. Also, this is not supposed to have all holo designs and styles in it, there’s already a psd tool for that, I’m just making and collecting styles google uses in their applications and some visual changes made in android 4.4 kitkat
Everything is made pixel perfect and in correct sizes based on screenshots. Everything is also in nexus 5 size (1080 x 1920).
Download - http://goo.gl/iHbO0W
(Updated version 1.1)