Ultimate Android 4.1 Update List: Which Tablets Will Get Jelly Bean?
Acer Iconia Tab A500 and A100
Acer updated both the Acer A500 and A100 with Android 4.0 Ice Cream Sandwich. However, the software was delayed a bit before it actually rolled out.
Given that the software may have caused Acer some headaches and that these are aging devices, an upgrade to Android 4.1 Jelly Bean may not be in the cards.
Remember, Android 4.1 is an incremental update which means there is a chance but at this point, we would start crossing those fingers A100 and A500 owners.
Taken from: Gotta Be Mobile