Turn your Gateway A60 into an Acer Iconia 500 and get ICS
For those of you who have a Gateway TPA60W (Acer Iconia A500 clone) and are desperate to get Ice Cream Sandwich, the way I was able to do it was to follow timmydean's method here to root the Acer A500.
Once you do that, your Gateway A60W will effectively become an Acer A500 and the only evidence left that it was ever a gateway tablet is the logo on the back cover. (Everything, firmware, device name, model number, splash screen when you boot, color scheme, etc will all list Acer as the manufacturer.)
After that step is accomplished, go to Google Play, download and install the Acer Upgrade tool that is necessary to get the ICS update. Once that is installed, go back to settings and check for a system update. You should then be able to download and install the official Acer ICS upgrade without issue.
Works like a charm.
But, as always, back up first!