The latest round of quarterly results has kicked off, providing clues to the shifting sands of the smartphone market. For HTC, sadly, it’s business as usual, with another quarter in the red, and below analyst expectations, though the Taiwanese firm insisted that a return to profit was ‘imminent’ and that its new M8 flagship would boost its fortunes for the rest of this year. More of a shock is the pressure on Samsung, seemingly invincible last year, but now issuing a warning of its second consecutive quarter of falling profits. And BlackBerry is not expecting to return to profit until its next fiscal year ‘ and even then, it may be without its handsets. Of course, the three-monthly comparison of…