Gizmodo Australia has today viewed a training document detailing exactly what’s going to be in the new tablet and how much it’s going to cost.

As rumoured, Google’s going to announce a 7-inch, Nexus-branded tablet called the Nexus 7. According to the leak, it’s built by Asus, with a 1.3Ghz quad-core Tegra 3 processor, GeForce 12-core GPU and 1GB of RAM with two different storage variants: 8GB and 16GB.

The Nexus tablet will also feature NFC and run Google Wallet (probably only in the US) and Android Beam.

The screen is an IPS display with a 178-degree viewing angle, running a resolution of 1280×800. The device will also sport a 1.2-megapixel front-facing camera. The battery will also give you nine hours worth of operation.

The 8GB model will set you back $US199 and the 16GB will cost $US249. No word in the document on local prices.

The leaked document also says that the device will be the first to run Jelly Bean, the new version of Android. Details are scarce on Jelly Bean, but the slides tell us that Google will handle operating system updates from now on, which could address the fragmentation problem. We aren’t sure if this statement means that Google will handle all handset updates from Jelly Bean onwards, or if it just means it will handle it for the Nexus 7 going forward. Based on the various arrangements with other manufacturers and telcos around the world, it’s likely to be the latter. We’ll know more come Google I/O.

Update: The document says that the Nexus 7 will run Android Jelly Bean, but makes no mention of the version number. We understand that the device will be version stamped with Android 4.1, rather than leaping ahead a generation and stamping it as 5.0. Wired had suggested after spotting a leaked benchmark that this would be the case.

Rumours about Google working on a Nexus-branded tablet with Asus have been swirling for a while. Even as far back as May, a report emerged of a super cheap Tegra 3-powered device was coming at the Google I/O developer event, which is now only days away.