如果最近几个月你曾经参加过计算机展览，你可能会见到这样一幕：一个银亮的饮料罐，带有拉环标记，表面有“opencola(开放可乐广的字样。

• If you've been to a computer show in recent months you might have seen it: a shiny silver drinks can with a ring-pull logo and the words ?opencola?on the side.