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Weekend Roundup: Microsoft Windows 8.1, Sony Xperia Z Ultra, and Wimbledon Insights

Microsoft launches Windows 8.1

The biggest news this week came out of California, where Microsoft's annual Build developer conference took place. For many, the highlight of the event was the official launch of Windows 8.1, née Windows Blue and the firm's incremental update of 2012's divisive Windows 8 platform. We pumped out a healthy whack of news and analysis around the new release, so check out the links below for everything Microsoft:

Wimbledon Insights serves up 

The opening week of the history-steeped Wimbledon Championships has proved a right doozy for tennis buffs and casual sport fans alike, producing a string of stunning results that have seen former champions Roger Federer and Rafa Nadal crash out in the opening rounds of play. Could anyone have predicted that rank outsider Sergiy Stakhovsky would topple arguably the greatest player the men's game has ever seen? Probably not, but if there is a chance of predicting these kinds of upsets, you can be sure that IBM is working on it. The tech giant is now in its 24th year of collaboration with the the All England Lawn Tennis Club, and in addition to rolling out a slick new iPad app, IBM is exploring the stats behind the Championships with its new Wimbledon Insights site. Check out the ITProPortal Wimbledon hub for all the tech-savvy stories out of SW19, or enjoy the following handpicked highlights:

Sony launches monster 6.4in Xperia Z Ultra phablet

It seems like a lifetime ago that Sony unveiled its waterproof Xperia Z handset at CES 2013, such is the speed at which the technology world changes. This week, we had another blockbuster handset launch from the Japanese consumer electronics giant - and in our back yard no less. Sony took to the swanky Bulgari Hotel in Knightsbridge to unleash "the next breakthrough in the Sony design story" - a 6.4in beast dubbed the Xperia Z Ultra. If you missed the action, you can relive the Xperia Z Ultra launch as it happened, or make straight for our hands on preview of the Xperia Z Ultra. As you can see from the following teaser photo, it absolutely dwarfed my archaic iPhone 4S.