No. 5 HP TouchPad

This is the first fruit of HP's $1.2 billion acquisition of Palm last year. The touch-screen device is the same size as the iPad, and it's expected to arrive sometime this summer. Top features include a front-facing camera for video calls and Qualcomm's ( QCOM) dual-core Snapdragon processor.

If the device does materialize, it will be a near duplicate of the iPad 2 without the Apple software or the 350,000 apps at the Apple App store.

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