As for its hard key layout, all of those buttons (volume, power and dedicated camera key) reside on the right, with nothing but a 3.5mm headphone jack up top and microUSB port at its base.

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Actually, it's more accurate to say that it's 95 percent BlackJack and 5 percent improvement, with a more inward-slanted, square d-pad that makes it considerably harder to accidentally hit the surrounding controls, and angled keys that offer an embedded numeric pad in the proper configuration (we appreciate what Samsung tried to do with the original BlackJack's every-other-key layout, but in practice, it just didn't work out).

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Problems included a penchant for picking up dirt and fingerprints (the price you pay for a beautiful glossy face, we suppose), a cramped nav key layout with the tricky touch-sensitive Navi Wheel front and center, audio performance that wasn't bad but was expected to be far better in light of the dedicated DSP, and a "shovel"-like feel in the hand, a symptom of the phone's generous dimensions.

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The Tactile Pro 4 closely matches the layout of a standard Mac keyboard - complete with an Fn key and special function keys that work just like those on an actual Apple keyboard.

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This is a key element in order to read the content in a better layout without having to manipulate the display.

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The layout hides a full, hinge-attached QWERTY keyboard from critics (and accidental key presses) underneath a back-mounted cover.

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