Today's Tech: Google unveils £220 Samsung Chromebook, MegaUpload is resurrected as Mega, Twitter bans anti-Semitic French tweets

Google has unveiled a new Samsung Chromebook that it's touting as an affordable 'computer for everyone'. The ARM-based laptop, which boasts an 11.6in, 1,366 x 768 display and weighs in at 1.1kg, is retailing for £222, and is available at PCWorld. A 3G version will also be available, though that will run you approximately £70 more. Hours after being listed, the Series 3 Chromebook climbed to the number one spot on Amazon's best-seller list, indicating that it's likely to sell well. Sounds like a holiday season contender.

A potentially very significant development in modern-day technology has been announced by Japanese company Sharp. It confirmed the December rollout of the Aquos Pad SHT 21, the first tablet to feature a display incorporating IGZO technology, which will be super-sensitive, pin-sharp and, most importantly, extremely battery-friendly. Because IGZO screens are more translucent than regular TFTs, light can penetrate them more easily, and fewer LEDs are needed to provide backlighting. On the whole, according to Sharp, this means that the upcoming device will last up to 2.5 times longer on a single charge than established rivals like the Google Nexus 7 (10 hours) and Amazon Kindle Fire HD (11 hours).

2012 has been the year of Android, iOS and Windows Phone in the mobile arena, but Canadian manufacturer Research In Motion is determined to make 2013 the year of its BlackBerry 10 operating system. Progress has been slow on the BB10 front, no doubt hampered by the well-documented financial problems of RIM, but the platform is taking shape and a partnership with media firm 7digital looks to make its music service a feature to be reckoned with. 7digital confirmed the link-up this week, which means BlackBerry 10 users will have a bank of over 22 million tracks to download via BlackBerry App World. Do software enhancements like this point to better times for RIM's mobile products? It'll take a lot more than this to restore confidence in the platform but the signs are looking a little more promising.

MegaUpload founder Kim Dotcom stated his plans to launch a new file sharing service called Mega. The controversial Internet personality explained that the new site ensured its users privacy via a specialised algorithm that encrypts any uploaded data in the users browser. This also gives Mega protection against liability as they have no access to users content. The new service is due to be up and running sometime next year along with previously discussed music service Megabox.

Twitter has agreed to remove anti-Semitic tweets from its French service after a Jewish student group threatened legal action. Operating under the hashtag #unbonjuif (#agoodjew), the racist tweet included "#UnBonJuif est un juif mort" translated as "A good Jew is a dead Jew." The decision to remove the messages comes soon after Twitter shut down an account used by a German neo-Nazi group at the request of German police.