RIM's Blackberry phones struggle to compete with Apple's iPhone and phones using Google's Android software. RIM's second quarter net income fell by 59% to $329 million, from $797 million in the same quarter prior year. Gross margins declined to 39%, from 46% the prior year. Revenue declined 10% to $4.2 billion. The Playbook tablet computer is also struggling. RIM shares lost 19% of their value in after hours trading following the announcement on Sept 15, 2011. RIM introduced 7 new phones that are updates of existing phones. It is not known when the new phones using the QNX operating system will be available.