The Motorola Xoom, the LG G-Slate, the Toshiba Tablet, and now the Samsung Galaxy Tab 10.1. All have similar specs and all will run Android 3.0 (Honeycomb).
So which one is the one to get? As far as I know, the Xoom and the Galaxy are both "pure" Google tablets (meaning no manufacturer installed UI skins like "Motoblur" or "Touchwiz"). That's a major plus since that would likely mean faster updates to Android. Beyond that, it almost seems like it's a style preference.
Still waiting on more tablet announcements to come (looking at you, HTC) but it sure looks like this will be the year of the "non-fruity" tablet. Guess I need to start saving :-)