Good news for Acer owners: your Android 4.0 updates are finally starting to trickle out. Early adopters who bought the Iconia Tab A500 when it was one of the only Honeycomb tablets available will feel vindicated that they'll be getting Ice Cream Sandwich very soon. Both the A500 and the smaller A100 will be seeing updates on April 27th (next Friday) in the United States. Canadians get the update on May 3rd (all the better to watch our Galaxy S III liveblog!) and those in Latin America will get updates for the A100 on April 25th and for the A500 on April 27th.
Both Acer tablets use Tegra 2 processors and a full gigabyte of RAM, a combination that's been proven to run Ice Cream Sandwich quite well. The 10-inch A500 has a standard 1280x800 and the 7-inch A100 uses 1024x600, again, both tried and tested resolutions. And judging by the rollout of Ice Cream Sandwich on the Iconia Tab A200, the slightly updated 10-inch model, everything should go smoothly. The newer tablet was updated to Android 4.0 back in February.
There are a few unanswered questions yet: one, Acer's website mentions the updates for Mexico and Brazil separately from Latin America, with only "TBA Mid-April" to go on. And the version number of ICS isn't mentioned either, though since it's listed as "4.0.x" across the board, Acer will probably go with 4.0.3 as they did with the A200. At least you won't need a separate computer to flash the new software - when the time comes, just go to your Settings app and press "About Tablet>System Update>Check Now" to begin the update process. If you're the impatient type, you could always try the leaked version.