BlackBerry focuses on security for new tablet; Telecom Italia tower unit plans IPO

> BlackBerry teamed with Samsung and IBM to develop a security-focused tablet PC. Article

> Porsche chief Matthias Mueller said the company will focus more on power plants and performance than connecting its cars. Report

> Microsoft is preparing versions of its Cortana voice control system for iOS and Android. Report

> Telecom Italia's tower unit Infrastrutture Wireless Italiane (Inwit) has filed with the Italian market regulator to list its shares on the Milan stock exchange. Article

> Egyptian businessman Naguib Sawiris said he was ready to invest $500 million (€474 million) in Egypt. Article

And finally…One UK bank may drop PIN codes in a heartbeat. Article