一些问题和可能的解决方案列举如下：(摘录自今年2月的ACM通信大会)。

Some problems and potential solutions: (excerpted from Communications of the ACM, Feb. 2010).

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世界移动通信大会正在巴塞罗那举行，以太阳能发电为基础的环保手机成为一大亮点。

Solar-powered mobile phones have become a big highlight of the ongoing Mobile World Congress 2009 in Barcelona, Spain.

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主办方不到一年前创办了这个活动，初创企业成了每年一度世界移动通信大会生态系统中越来越重要的一部分。

Organizers created it less than a year ago, as the startup scene became an increasingly important part of the ecosystem around the yearly conference.

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