Gigaom - The Asus Transformer Prime has several “firsts” for 2012. It’s the first tablet to come with Google’s new Android 4.0 software, designed to unify phones and tablets. And it’s the first tablet to run on a quad-core chip from Nvidia, dubbed the Tegra 3. So does first equal best? Not in every case, but in this particular instance, I’m comfortable in saying that the $499 Transformer Prime is currently the best large Android tablet you can buy.