First of all, a compliment: thanks for adding aptx profile information to your reviews! You're the best!
And second, there is nothing in this review about wireless charging, which the Nexus 7 supported. I guess that the lack of mention means that the new Nexus 9 does not support it. It would be a shame.
Best Android tablet at the moment period.
That 4:3 screen looks gorgeous! And lollipop's material design will look elegant on that display. Tegra K1 beast OMG!