Compatible the google android ADK, supporting android phone: G1, Nexus One, Nexus S, Motorola Droid X.
Mobile systems need to upgrade to Android 2.3.4, tablet PC need to upgrade to Android 3.1.
Compatible with Arduino following hardware:
Arduino UNO 328
Arduino Mega 2560
Arduino Mega 1280
Arduino Diecimila / Duemilanove 328
To achieve the Arduino USB host function, you can communicate with other USB devices, and with USB hub function.