ArduinoDroid - Arduino IDE for Android Features:
* open/edit arduino sketches
* example sketches and libraries included
* code syntax highlighting
* compile sketches (no root required)
* upload sketches (FTDI-based board and Arduino Uno are supported at this time only, android devices with USB-host support required)
* works offline (internet connection is not required)
On first launch ArduinoDroid downloads and extracts SDK (about 30Mb), so about 100Mb on sdcard is required.
Stole this information from Palm Sounds-
A website dedicated to Palm/iPhone/Android music making to see the website go here-
http://www.palmsounds.net/
Playstore link:
ArduinoDroid
BlogSpot For ArduinoDroid:
http://arduinodroid.blogspot.com.es/