Mobile phones stolen in London, Birmingham and Manchester will be blocked in a matter of hours. Phone retailers and networks have confirmed they will block stolen phones, as normal, so we recommend you look carefully at the deal if you’re considering buying a second-hand phone or any kind of gadget in the wake of the riots. Electronics stores have been …

Facebook now has its own instant messaging app, called Facebook Messenger. The app, which is available for Android and iOS devices, lets you send messages instantly to anyone in your Facebook friends list. The app will also let you send messages to people on your mobile contacts list, and send out group messages too. We suspect that could come in …

Sprint Nextel plans to enter the cloud services business in the fourth quarter, an executive told CNET today. The Overland Park, Kansas, company will offer small and medium-size businesses and large corporations “hosted collaboration services” such as software, security applications and Internet hosting, and also will sell its infrastructure as a service, which can be purchased on an on-demand model, …