I would love an official google tab but I don't think its in the works as of yet. From what I have read the moto xoom and the terga 2 chipset was the main development platform for honeycomb 3.0 so I suppose you can consider the xoom/Acer a500, and all the other tabs with the same hardware to be nexus tabs. Anyway, the the main attraction that most people have for nexu devices is that they ship clean without skins, etc - which the a500 and xoom feature anyway. (Pure android experience)