Acer has started rolling out this morning Android 4.0 Ice Cream Sandwich firmware upgrade to the Iconia Tab A200. The update is available in stages over the air (OTA) and only in Japan.
The latest build upgrades A200 from Android 3.2 (Honeycomb) to Android 4.0.3 ICS operating system. Iconia Tab A200 owners living in this country who did not receive a notification update yet can either wait until they get prompt to upgrade or they can manually check from time to time by going into the Settings> About device.
source Acer [JP]