We held off a little bit after the announcement came out just to see how exactly how long it would take for Verizon and Google to roll out the Android 3.1 Honeycomb update slated for "today". As it turns, it really wasn't all that long -- many users have now let us know their Motorola Xoom updates have gone live and while some folks are still waiting, we've heard it may be rolling out in batches so you'll just have to sit tight.
In the meantime though, feel free to shout out in the Android Central forums if you got your update. We, and I'm sure plenty of others -- are pretty stoked to hear how the update is working. If you're looking for the direct download link, you can find it here.
Thanks, for the image @VMDoug