I know this is oooooold now, so not sure if anyone will even read this.... however.... I've just revived my old Xoom which I want to use for testing. It currently has Android 4.0.4 installed. Do you know if there were any further over the air updates, and what the latest version should/could be? When I try and check for updates, I get "Unable to check for updates at present. Please try again later". Any ideas? Thanks.