Our electricity bills have doubled since we started working and learning from home, we've had our Tesla Model S for two years now – we share the experience - the good, the bad and the brilliant, the App Store economy rings up more than half a trillion dollars in sales – we tell you the most popular apps, we’ll take a look at the Espresso Display – a thin and portable monitor made by Australians, D-Link has a new wi-fi router, Technics have unveiled its new wirefree earphones and we’ll answer your tech questions in the Tech Guide Help Desk.

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