Bay tries to gloss over the infantile plot, but it would take a lighter, wittier touch to square the movie's pedestrian script with its excitable vision of impending auto-geddon.

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Although the form factor has evolved, it still sports the same touch screen, rounded-edge square apps, and home button.

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That red color bathes a machined aluminum back that has a rather more square profile than the previous iPod touch, but it's still decidedly more comfortable in the hand than the angular, industrial iPhone.

ENGADGET: iPod touch review (2012)