Researchers at the Swinburne University of Technology overcome a law of optical science to develop technology boosting DVD storage capacity-- a change in writing lasers boosts DVD storage capacity from 4.7GB to up to 1 petabyte.
The technology enables "three-dimensional optical beam lithography at nine nanometres" and acts as a turnaround to Abbe's Limit, the law discovered in 1873 by Ernst Abbe.
Abbe's Limit states light beam focused by a lens cannot produce a focal spot smaller than half of the wavelength (or 500nm) for visible light. It allowed for the development of of modern optical microscopy, but set a barrier for scientists working in the nanometer scale.
“The new technique produces a focal spot that is 1/10000 of a human hair, enabling more data to be written to disc,” Swinburne Centre for Micro-Photonics director Professor Min Gu says.
The first Sony step in smartphone/tablet hybrid territory, the Xperia Z Ultra is a massive (6.4-inch!) device with sleek "OmniBalance" stylings based on those of the recent crop of Xperia devices. The display handles 1920x1080 resolutions and features Bravia TV technology, while the tempered glass casing is 6.5mm fat and weighs 212g. 
802.11ac wifi operates on the 5GHz band. Most wifi certified products are also dual-band (operating on either 2.4 or 5GHz bands), providing networks with double capacity as the 5GHz band finds use for high-performance applications and 2.4GHz for basic needs. 
2012 DMA shipments total 13 million units. 
The more interesting of the lot is the ATIV Q, a "fully convertible device" offering 4 different configuration (laptop, tablet and 2 in-between modes) running on either Windows 7 or Android Jelly Bean (4.2.2). 
