Happy news for Android tinkerers everywhere -- Motorola has officially confirmed it will attempt to perform its 4G upgrade on all Verizon Wireless-riding Xoom tablets it receives from users, whether they've been rooted, repainted, or accessorized with fluffy dice. Naturally, the company can't guarantee successful software updates on devices that have had their OS tweaked, so it asks users to be kind and rewind to the original firmware state. For those unwilling to stretch that far back, Moto will still give it a shot and says that it'll install the 4G LTE modem at a minimum. What a refreshingly open-minded attitude. Now if Moto could give us an open-minded