Ultimately everyone who wants a tablet will have to make a private decision of what they want for themselves. I have both an iPad (well I got it for my three year old daughter) and a Galaxy Tab and I have to say I love them both and they both have been life changing. If you get a Xoom, I doubt you'll be disappointed, because going from not having a tablet to getting one is going to be an amazing experience. I don't imagine the Xoom is being marketed to people who already have an iPad so there you go. Get an iPad for the many (wonderful) apps and media or get an android tablet because despite the many flaws in Android, it is a kick ass operating system and because you can actually purchase kindle, nook and epub titles directly from the e-reader apps. Listen to all the pundits and reviews, and then make a thoughtful decision and be happy with the one you made.
Steve Jobs and John Gruber might not see it this way, but despite that there is some truth in the 'copy cat' nature of Android, it is a good thing that iOS has competition. It's not just lackluster competition either, Android is awesome.
Nuff' said.