(CNN) -- The last full day of the Mobile World Congress show in Barcelona has drawn to a close. After a bonanza of new phones, tablets and mobile gadgets, here's the last of what's new at this year's show, courtesy of Stuff Magazine.
Microsoft Windows Phone Director Aaron Woodman has stated his belief that competition between manufacturers to produce phones with faster and faster quad-core processors is unnecessary. "The quad-core arms race is ridiculous," said Woodman. Instead, he explained how Windows Phone devices like the Nokia Lumia 800 are able to run fast without using battery-sucking quad-core innards. Microsoft has even gone as far as handing out €100 ($133) to anyone whose phone can beat a Windows Phone in a one-on-one user test during MWC.
Microsoft announced the release of the consumer preview of its forthcoming Windows 8 operating system. The new software is designed to work on both computers and tablets, taking many design cues from its own Windows Phone 7 software. The company said it has made a staggering 100,000 code changes since the last preview. Early testers will be pleased to know that all apps in the Windows 8 app store are free to download during the preview.
LG's recently revealed Optimus Vu smartphone, which sports a 5-inch screen with an unusual 4:3 aspect ratio, won't be seen in the United Kingdom for at least a year. The long wait is due to the UK's lack of a 4G or LTE network. Other countries such as the United States are already enjoying super-fast 4G mobile data speeds while the UK lags behind.
A prototype of the Samsung Galaxy Beam projector phone has been doing the rounds. The smartphone prototype runs on Google Android 2.3 and has a 15 lumens projector built into its top edge. Users can beam a 50-inch image on a blank wall or screen, perfect for showing off holiday snaps or giving impromptu presentations.