Today's Tech: Twitter #Music service launched, John Lewis offers free broadband, Google stops 3rd parties cashing in on Glass

Twitter has finally launched its heavily tipped music recommendation service, which includes both a web-based platform and an iOS app. Twitter #Music is based on We are Hunted, a music startup purchased by the social networking giant last year. The result is a service that allows users to access songs from Rdio, Spotify and iTunes, pulling in data from the people you follow on Twitter to serve up personalised music recommendations. Users with Rdio and Spotify accounts can sign in to those services to stream complete songs directly within Twitter #Music, while iTunes preview snippets will be available to everyone. Read on for more about the how the brand-new service works.

High Street retailer John Lewis has a new ploy to encourage punters to walk away from its outlets with big ticket new purchases - from today, customers buying "Internet-enabled" gadgets like eBook readers, tablets, smartphones, smart TVs or even wireless printers will be offered six months of free broadband to sweeten the deal. However, consumers should note that John Lewis is playing fairly loose with its definition of "free." For starters, you'll have to sign up for a 12 month contract, the first six months of which will count as your complimentary half-year. There's a trio of packages on offer, ranging from an £11 a month ADSL-based service up to a £25 a month fibre-option. You'll also have to cough up £13.50 a month as a line rental fee for the duration of the contract, including the 'free' six months - which makes the retailer's comments that its offer is devoid of "hidden charges" all the more interesting. Follow the link for the full low-down on the retail giant's latest bid to woo techies.

As if to signal Google Glass’s quickening progression from madcap concept to looming reality, the product’s newly published terms and conditions are grabbing attention by preventing a variety of third parties from cashing in on Glass hype. The most significant development comes via Google’s advertising policy for the device, as developers working on apps for Glass have been told they will not be able to place ads within the display, while companies will also be prohibited from charging for apps. In a very separate incident, meanwhile, Glass terms and conditions have robbed a US man of nearly $100,000. An American known only as “Ed from Philadelphia” was responsible for Glass’s very first appearance on eBay, having put the device up for auction after winning the chance to be a ‘Glass Explorer’ and trial the product. But as bidding surpassed a whopping $95,300 (£63,000), Ed noticed that Google vows to deactivate any of the early devices that are re-sold, and had to end the auction - saying goodbye to his growing cash windfall. Follow the link for more on each case.

With 4G networks set to proliferate across the UK later this year, organisations will be eager to capitalise on the opportunities for greater efficiency and productivity brought by high speed connectivity. But research suggests businesses should feel wary about throwing themselves into new systems under the technology, with many IT managers fearing their networks could become more vulnerable due to increased and more varied usage. Security firm SecureData has released a study which spoke to 100 senior IT managers (in UK enterprises with over a thousand employees) about their hopes and fears regarding the adoption of 4G tech in the workplace, and a huge majority said they expected an increased security risk as a result of the change. Read on for some telling statistics and advise from the experts.