UPDATE 13/11/2012: To celebrate the release of the new Nexus 4 and Nexus 10, Android GUI Sketching Kit is now updated to version 3.0! It has been added with Nexus 4 and Nexus 10 sketching templates, as well as added the guide for Split Action Bar for Galaxy Nexus and Nexus 4.
UPDATE 27/09/2012: The Android GUI Sketching Kit is mentioned in the 3rd episode of Android Design in Action! To thanks Roman Nurik and Nick Butcher for the shout-out, I have spent some time updating the sketching template to version 2.0, which also includes the Xoom template! I have removed the title and description fields in the templates, and introduce the guide for Status Bar, Action Bar, Navigation Bar, and Combined Bar (for Xoom). Hope you will find it useful!
Besides making the Android ICS GUI Design Kit that can be used in Adobe Photoshop, I also think (and love!) that sketching is a big part of UI/UX designing, while it can be messy, but it definitely help in quick idea visualization and aid in brainstorming.
So here I come up with a few sketch templates for Android App, using the Samsung Nexus S, Samsung Galaxy Nexus and Asus Nexus 7 as the sample devices, and put them on an A4-sized PDF with almost real-life size so designers can sketch the app with the size as close as the real device (don’t blame me if there is one or two pixels off! /jk/).
Android app designer, go create some awesome apps with the GUI Design Kit and GUI Sketching Kit!