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In terms of hardware features, the Q's right side 3-way scroll wheel and dedicated back buttons take center stage. These give the Q user fast BlackBerry-like scrolling with the ability to select an item or return to the prior screen--all with the user's thumb. Of course you can still do these same things the traditional way by using the 5-way direction pad and the back button that sits to its right. There's also a dedicated home key as well as the red and green call control keys.