All of these Android GUI templates, kits and stencils have all been designed to not only help you maintain the Android Design Guidelines but also to fast-track the initial prototyping stage of your app. All of the templates are fully editable and, depending on the template, are available in all popular formats (.psd, .ai, .eps, .png and Omnigraffle formats).
Official Android 4.0 Stencils (PSD, PNG & Omnigraffle)
These stencils come from Androids official design guidelines and style guide, Android Design. The guide covers everything you would ever need to know about designing for Android, and is a must bookmark for any designer.
The stencils feature the rich typography, colors, interactive controls, and icons found throughout Android 4.0, along with phone and tablet outlines to frame your creations. Source files for icons and controls are also available.
This Android 4.0 .psd template come with both light and dark versions and includes homescreen widgets, lock screen, notification bar, keyboard, map UI elements and alert dialogs.
Using the specs from Motorola's Xoom tablet, ZURB, created these extensive wireframing stencils, based on Android 3.0. that include templates for toolbars, keyboards, dialogue boxes, camera settings and some widgets (mail and calendar).
Again from ZURB, these are a complete set of wireframing stencils, based on the the HTC Thunderbolt and Android 2.3. The stencils include toolbars, buttons, alerts, keyboards, and much, much more.
Android 4.0 ICS GUI Design Kits (PSD)
This extensive 4.0 GUI design kit includes: App login screen, homescreen, launcher screen, option bar (top and bottom), tab bar, menu, keyboard, notification center & bar, pop-up menu, settings page, switches, sliders, text fields, buttons and much more.
Android 4.0 GUI – High-Density (PSD)
From teehanlax, this is a fully vectorized Android 4.0 GUI PSD that is based on the most popular screen size (normal) and pixel-density (high) using the default Android skin as the baseline.
Android 2.3 GUI (PSD)
Android 2.2 GUI (PSD)
Android 2.1 Wireframe Stencil (Omnigraffle)
This Android 2.1 wireframing Omnigraffle template comes with stencils for the HTC Sense UI, the Samsung TouchWiz and the default base Android OS.
Android 2.1 GUI Templates (PSD)
In this Fireworks GUI template the Android user interface elements has been redrawn as vector images. In the folders the elements have been mostly labeled according to the Android vocabulary.
Android Widgets GUI (PSD)
This .psd download package contains all of Androids default widgets, including: Analogue clock, calendar, Facebook, latitude, music, picture frame, power control, Twitter, voice inbox, voice settings, weather and YouTube.
(PNG & AI)
The official Android icon download package includes icons that are scaled for various screen densities and suitable for use with the Holo Light and Holo Dark themes. The package also includes unstyled icons that you can modify to match your theme, plus source files.
Android Icons (Custom Photoshop Shape)
Here is the most complete Android icon collection you could find. With 15,000 unique icons, including all sizes and variations following the standards layed-out by Android.
Android 4.0 has introduced a new font family named Roboto, created specifically for the requirements of the UI and high-resolution screens. You can also download the Roboto @fontface package here: Roboto @fontface Package from Font Squirrel.