Google has launched two Nexus tablets and a smartphone, alongside improved Now mobile information and Play entertainment services.
The Nexus 4 smartphone made by LG for Google comes in 8 GB ($399) and 16 GB ($499) variants and is equipped with a 320 pixels per inch display with 1280 by 768 pixel resolution.
A Qualcomm Snapdragon S4 quad-core processor powers the phone which also has an 8 megapixel camera at the rear, and a 1.3 megapixel imager at the front.
The Nexus 4 works in the 850, 900, 1700, 1900 and 2100MHz bands with HSPA+ 3G mobile broadband at up to 21 Mbps downloads.
The Nexus 10 tablet with a ultra-high resolution 2560 by 1600 pixel display will retail in Australia for $469 for the 16 GB version and $569 for the 32 GB version.
Australian pricing for the Nexus 7 tablet, which is an updated version to the model launched earlier this year with HSPA+ 3G broadband support, is yet to be announced by Google.
A 16 GB version costs US$199 and a 32 GB one retails for US$249 in wi-fi only format. The 3G version comes with 32 GB storage and costs US$299.
A 4.2 update to Google's Android operating system with Gesture Typing that lets you slide your finger over the keyboard in a similar way to the Swype and Swiftkey add-ons was also launched.
The new Android version is still code-named Jelly Bean like its predecessor and also features wireless display for use with HDTVs.
A new immersive Photo Sphere feature in 4.2 is inspired by Google's Street View, the Android director of product management, Hugo Barra, said.
It uses JPEG images with metadata embedded in them in XML format allowing users to create 360-degree panoramas.
Movie purchases and rentals via Google Play will also be available to Australian customers.
Google has signed up studio Twentieth Century Fox as provider of movies and TV shows, and there's also music from Warner and US magazines like People and Time in the refreshed Play store.