If these leaked builds are any indication of the progress Acer has made on the Android 4.0 then we could be in for an official OTA soon. A few leaked ICS builds for both the A500 and the A100 has leaked. So far these builds seems to be pretty much bug free and I’d say it’s ready for release. Acer has stated that the official rollout will begin in April but that might get push forward a bit. You can flash these builds if your running stock firmware and it does break rot. But the end result is worth it as ICS performs beautifully on the devices.