Mutual Mobile's Android design guidelines (PDF)

Mutual Mobile inc. has released an updated version of their Android design guidelines document. This excellent and compact (44 pages) document can be valuable for anyone writing or designing software for Android. 

The guidelines contain following subjects:

• sizes and resolution
• UI elements
• icons
• dialog and listview icons
• widgets
• draw9patch
• gestures
• gingerbread
• honeycomb
• conventions

Download the PDF from Mutual Mobile's website for free:

http://www.mutualmobile.com/wp-content/uploads/2011/04/ADG1.1.pdf

There's also an interesting post in Sony Ericsson's developer world written by Adam Beckley, a Mutual Mobile designer, covering the Android design guidelines. Check it out here.

Android fragmentation is a legitimate fear, but a lot of that bellyaching comes from designers who are intimidated by the platform and its lack of helpful resources. I was one of those designers once, and I realised it was time to do something about it. - Adam Beckley