After months of delay BlackBerry (NASDAQ:RIMM) the company formerly known as Research In Motion finally introduced its long-awaited BlackBerry 10 smartphone devices earlier this week at a launch event.   The new BlackBerry Z10 and Q10 fitted with the upgraded BB10 software are BlackBerry’s answers to leading devices from market leaders Apple (NASDAQ:AAPL) and Samsung (PINK:SSNLF)   The touchscreen BlackBerry Z10 made its retail debut on Thursday in the UK with Canada due to get it starting February 5 and the UAE next in line on February 10. At this point you’re wondering: But what about the US? According ...