As rumoured it’s been designed by HTC
This is what HTC posted on it.
From the post on the official Google Blog
Next, a new tablet built in partnership with HTC. Nexus 9, with brushed metal sides and 8.9-inch screen, is small enough to easily carry around in one hand, yet big enough to work on. And since more and more people want to have the same simple experience they have on their tablets when they have to do real work, we designed a keyboard folio that magnetically attaches to the Nexus 9, folds into two different angles and rests securely on your lap like a laptop.
More info on Nexus 9 HERE
Joining the party: Android 5.0 Lollipop
As previewed at Google I/O, Lollipop is our largest, most ambitious release on Android with over 5,000 new APIs for developers. Lollipop is designed to be flexible, to work on all your devices and to be customized for you the way you see fit. And just like Android has always been, it’s designed to be shared.
Lollipop is made for a world where moving throughout the day means interacting with a bunch of different screens—from phones and tablets to TVs. With more devices connecting together, your expectation is that things just work. With Lollipop, it’s easier than ever to pick up where you left off, so the songs, photos, apps, and even recent searches from one of your Android devices can be immediately enjoyed across all the other ones.
As you switch from one screen to another, the experience should feel the same. So Lollipop has a consistent design across devices—an approach we call Material Design. Now content responds to your touch, or even your voice, in more intuitive ways, and transitions between tasks are more fluid.
Lollipop also gives you more control over your device. You can now adjust your settings so that only certain people and notifications can get through, for example, when you’re out to dinner or in the middle of an important meeting. And when an important notification does come through, you can see it directly from the lockscreen.
And because we’re using our devices a lot more, there’s a new battery saver feature that extends the life of your device by up to 90 minutes—helpful if you’re far from a power outlet. We’ve enabled multiple user accounts and guest user mode for keeping your personal stuff private. And you can now secure your device with a PIN, password, pattern, or even by pairing your phone to a trusted device like your watch or car with Smart Lock. But this is just a small taste of Lollipop. Learn more on android.com.
Direct link here http://www.android.com/versions/lollipop-5-0/
Android 5.0 Lollipop, which comes on Nexus 6, Nexus 9 and Nexus Player, will also be available on Nexus 5, 7, 10 and Google Play edition devices in the coming weeks.