(Telecompaper) Vodafone UK announced it's forming a joint venture with supermarket chain Sainsbury's to launch the service 'Mobile by Sainsbury's'. The 50-50 venture will offer equipment and services in Sainsbury's stores and online as part of virtual network operator agreement. Mobile by Sainsbury's will launch later this summer and include offers to reward customer loyalty as part of Sainsbury's Nectar points programme. Sainsbury's said the offering will focus on simplicity and value for money, as well as "unbeatable coverage and reliability" from the Vodafone network.