Demos [the thinktank that did the study] paints a picture of a world in which English is presently dominant as the leading language of international commerce and government. This position has largely been consolidated by English being the predominant language of computing and the internet. However, of the estimated 1.3 billion speakers of English in the world, there are only 330 million native speakers -- and this puts Britons in a minority within a minority.It goes on to discuss how Cambridge ESOL copes with this. I started reading this article expecting something completely different than what I got, however. The article takes up about 3/4 of a tabloid page and never once mentions American English (or the United States or North America) by name. It doesn't mention any other nations whose main language is English either, but in discussing the role of English in the global marketplace, it just seems weird not to namecheck AmE--particularly in pointing out the spread of English through computing and the internet and British disdain for other varieties of English.
The report says, moreover, that the UK had rested on its laurels and that its approach towards English is more suited to days of empire than to a world of global commerce and travel. The British have failed to address the need to learn other languages adequately (we have the lowest levels of bilingualism in the European Union) and are equally disdainful of those who speak other forms of English than our own, especially new varieties such as Spanglish (a Spanish-English dialect), Hinglish (a mix of Hindi and English) or Singlish (a Singaporean, Malay, Indian and English melange).
American English: the elephant in the global English living room.