本篇将介绍黑莓手机操作系统。

Here, we will cover the mobile smartphone operating system BlackBerry OS.

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苹果可能将会介绍下一代Mac操作系统，OS X Lion与下一代OS，iOS 5手机的详细信息。

Apple will likely give details on the next-gen Mac operating system, OS X Lion, and the next version of its mobile OS, iOS 5.

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第三部分我们介绍最后一款智能手机操作系统Palm，并提供更进一步的购买建议。

Part three will cover the last mobile smartphone OS Palm, and provide some further buying advice.

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