Anticipation is growing around the official unveiling of the Google Nexus 7 expected later this week, and fresh reports estimate that a whopping three million of the tablets are ready to be shipped.

Supply chain makers in Taiwan have told DigiTimes that Quanta, the world's biggest tablet manufacturer, will stock our shelves with "three million units of Nexus in 2012".

Revealing more on big tech news that may soon be coming our way, the same sources said Amazon will launch a new version of the 7in Kindle Fire in the second half of this year, something that has yet to happen with five days to go until H2.

The Nexus 7 is a joint venture from Google and Asus and has attracted strong early interest, thanks in part to its affordable price tag - predicted to be around £130 for the 8GB version. Leaks we reported yesterday details a 7in tablet running Android Jelly Bean and powered by a 1.3 GHz quad-core Tegra 3 processor.

Neither Google nor Asus confirmed the leak, but all should be revealed at the Google I/O developers' conference which begins tomorrow.