Just as Amazon was thinking about refreshing the Kindle Fire, it looks like Google is ready to start a war in the entry-level tablet market, with the Nexus 7 Tablet being leaked ahead of launch in a Google sales training document. 

Commence Fire

Just a couple of weeks ago, we posted that Amazon was looking at expanding the Kindle Fire both in terms of device range and territories. It had better get a move on with those plans if it doesn't want previously loyal users looking elsewhere for their next device.

Google will formally unveil the Nexus 7 Tablet at its I/O conference event, starting on Wednesday, but the spec sheet is already doing the rounds after leaking out in Australia (via Gizmodo), where they can only dream of owning a Kindle Fire. The event will focus on Chrome, Android, Google+ but any new hardware will grab the headlines.

The Nexus will pack a 7-inch in-plane switching screen with a 1280x800 resolution, powered by an Nvidia Tegra 3 processor, running at 1.3GHz with multi-core graphics. It will offer 1GB of base RAM and be running the spanking new Android 4.1 code-named Jelly Bean. There will be two storage choices, 8GB and 16GB, priced at $199 or $249 respectively. 

The Power of Android

Running the full Android OS and available from July in America and many international markets, the Nexus will instantly out-pace existing Kindle Fires and the army of budget Chinese-produced tablets. Perhaps Amazon's new offering will match, or even be based on the Nexus 7, to disarm the Fire's many critics. 

Expect the Nexus 7 to sell many millions of devices very rapidly, putting another roadblock up for Microsoft's recently announced Surface tablets to overcome, it will also create still competition for future iPad sales, which is perhaps why Apple is looking further into TV as its next venture to avoid the inevitable strangulation of the tablet market. 

With Google taking over updates for the device, users won't be left worrying about being stranded with an older OS. If the Nexus 7 comes with SD storage support it would be the ideal contender, but even without that, it could rapidly become a No. 1 seller. We'll cover the full unveil and keynote on Wednesday, along with any other news as Google looks to kickstart its social media service and push Chrome.