The CEO of embattled BlackBerry maker Research in Motion says he isn’t satisfied with the company’s performance, but he’s excited about its prospects with the upcoming BlackBerry 10 system. The past year has been very difficult, Thorsten Heins said during a shareholders meeting in Waterloo, Ontario, on Tuesday. Less than two weeks ago, RIM announced disappointing financial results, plans to cut 30% of its workforce and the latest delay in BlackBerry 10. Its stock is trading near a nine-year low. Read the full story at USA Today.