File photo of a Blackberry Z10 at a store in Toronto

A Blackberry Z10 is displayed at a store in Toronto in this February 5, 2013 file photograph. BlackBerry announced better than expected results on March 28, 2013, driven by demand for its new touchscreen device which holds the key to a successful turnaround for the smartphone maker. REUTERS/Mark Blinch/Files (CANADA – Tags: BUSINESS SCIENCE TECHNOLOGY TELECOMS)