Jawbone, a company that's probably best known for its noise-cancelling Bluetooth headsets, is planning high-tech jewellery that'll also keep an eye on your health.

UP by Jawbone is due to be launched later this year. It includes sophisticated sensor technology to track your movement, sleep patterns and nutrition.

O2 UK is building on the success of its 'Priority Tickets' service by launching a new location-based offers scheme called Priority Moments. It'll rival existing 'voucher' discount services such as Groupon and will be available to O2's 22 million customers across the UK.

The deals could save O2 customers over £100 per month.

73% of mobile phone users in the USA use their mobile phones to visit social networking sites at least once a day, according to a new survey from ABI Research.

Social networking was the second most-popular mobile activity after checking email, which was carried out by 80% of smartphone, feature phone or tablet users.

Vodafone has issued a statement about the security of the Vodafone Sure Signal femtocell, which is available in the UK to boost signal strength indoors.

On Wednesday last week a security group called The Hacker's Choice said it had managed to reverse-engineer the equipment, enabling a modified femtocell to intercept calls made by Vodafone customers within 50 metres of the rogue device.

HTC Corporation has promoted Jason Mackenzie to the newly-created position of president for global sales and marketing. He'll continue in his current role as president of HTC North America and Latin America until a replacement is announced.

Mr Mackenzie will report directly to CEO Peter Chou.