Acer has officially announced the Android 4.0 update date for those sporting an Iconia Tab A100 or A500 tablet in the US. In short, your Ice Cream Sandwich update will be arriving shortly, on April 27th. Additionally, those with an A500 in Canada and Latin America will also be getting Android 4.0 as of the 27th. Otherwise, the A100 update for those in Canada is set to arrive a bit later, on May 3rd. Bottom line, if you have an A100 or A500 tablet — you have an update coming very soon.