BlackBerry Torch users can type messages on the screen or a slide-out keyboard.

黑莓火炬用户可以在屏幕上或侧边滑出的键盘上输入文字。

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The Q10 runs on the latest iteration of the BlackBerry 10 operating system, which made its debut last month on the full touch-screen Z10.

WSJ: Q10 Review: The BlackBerry of BlackBerry Users' Dreams

Very rarely does BlackBerry 10 display a "Back" button on the screen, which is a blessing.

NPR: Review: BlackBerry Z10 Is Good Stab At Rebirth

It tells me to open my BlackBerry App World on the Curve and scan the barcode on its screen.

FORBES: BlackBerry PlayBook: Abandon All Hope