The research and development of this product mainly concerns software including the porting of OS, Bluetooth stack and network configuration and application of SIP.

产品的开发主要围绕软件包括操作系统的移植，蓝牙协议栈的移植，网络平台的构建和SIP运用的开发。

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The porting effort of such an OS is determined by the size of the OS kernel.

这种操作系统的移植难度大小只由系统内核的大小决定。

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In addition, given that RIM appears to be experiencing difficulties with porting its enterprise applications to the new OS (BB10), it is far from clear whether these applications could ever be ported to a third-party OS such as Android or Windows Phone.

FORBES: RIM's Management Shuffle: The Street Remains Skeptical

To reach true OS agnosticism 6Wunderkinder, however, relied on HTML5 -- which makes porting an app easy, but comes with its own drawbacks, including lackluster performance. (Just ask Mark Zuckerberg.) With the revamp, Wunderlist 2, the task management platform now has truly native apps for Android, iOS, OS X and Windows to compliment its web site.

ENGADGET: Wunderlist 2 debuts, ditches HTML5 for native apps on Android, Windows, iOS and Mac