Ok, then the linguists I read tend to be splitters rather than lumpers. =) This is particularly drama-prone in re: the Chinese languages/dialects due to the tendency for Beijing to attempt to cast all speakers of Chinese languages as in fact speakers of a single language, as part of their attempts to create a single unified Han identity.

But in the end, I really believe that if it weren't for the common written language, no one would ever think of Cantonese as being just a dialect of the same language as Mandarin - the differences between the two spoken languages are so massive.