BlackBerry’'s big day is here, and so is the first BlackBerry 10 smartphone. A company’s hopes are resting on this bold (no pun intended) new device, and to some extent, a nation’s as well. I’ve been using the BlackBerry Z10, the flagship BB10 handset, for the past week now, and in that time I’ve been putting this new smartphone through everything I could think of to throw at it to see if BlackBerry is finally fielding a device that can roll with the big boys.