I picked up an Asus Infinity a week ago, its a damn nice tablet. And should be getting a Jelly Bean update with in the next few days, if Asus is to be believed.
On the GTab 2 models, they're OMAP4 powered. Laggy with TouchWiz. They are, however, well built and have sd slots. The Note 10.1, yuck. Its thick, heavy, and made of the cheapest plastic imaginable. Despite the Exynos 4412, its also laggy. I was not impressed with the Note 10.1, and neither were pretty much all reviews. Android Police really ripped it a new one.
If you're interested in the forked Android versions from Amazon and B&N, then it might be worth waiting a little longer than a month for the ~9in Fire HD and Nook HD+ to arrive. But, the Fire HD available now though seems to be a mess on the software side.