Blackberry struggles with competition
Blackberry maker Research In Motion releases second quarter results after the markets close.
Investors are braced for more losses as it struggles with competition from Apple and Android based phones.
After a tough few years, RIM is now pinning its hopes on new handsets and a new operating system called Blackberry Ten to revive its fortunes.
However, customers will need to be patient as it will not be ready until after Christmas and by then many may have gone elsewhere.
Ben Thompson reports from New York.