Do American Accents "blend"?

<<As soon as a Californian opens his mouth you know it.

;_) >>

"His" mouth? Well I'm a Californian male and when not in California my place of origin has more than once been guessed correctly due to my accent but it's not just males, I can assure you. :)

<<
Tis true (as long as one really means "their" by "his"), but then, from the perspective of many a Californian, the same is true with Upper Midwesterners. >>

Yup. They're very noticeable.

The differences in pronunciation among speakers of RP and GAE are not that great. English accents everywhere are gradually blending together, thanks to the increased mobility of English-speaking populations and the existence of worldwide, instant communication.

i live in america. i was born and raised here (in louisiana) and i am quite jealous of the australian accent. but i have a question. you know how americans can pick up an australian accent right away?..well can australians do the same for americans! someone answer please!