Search the web for guitar chord charts to your favorite songs. Then, Chord Reader will automatically analyze the chords and allow you to transpose, add a capo, etc. It's great for guys like me with a limited vocal range.
You can also click a chord to see the suggested guitar fingering. Multiple fingerings are shown, with the most common one first.
Additionally, you can import your own chord charts into Chord Reader. Simply copy the files you want (in plain text format) from your computer to the "/sdcard/chord_reader" folder.
This is free and open-source software, so any bug reports or contributions are appreciated.
Rock on, fellow Android guitarists!