thanks for the info. I am trying to get my visa but it is getting delayed. I think their representatives go around the world to conduct interviews. I am thinking of that option. Are you a student at cambridge?
I'm not a student, but I was considering Cambridge for an MBA. I did a lot of research on the program and also visited JBS for a tour. I have never heard of them conducting interviews anywhere but at the school, as professors are the primary interviewers. I have heard of a couple cases of telephonic interviews, and in only cases like you describe, i.e. visa problems, etc.
If it is of any interest, I am not considering Cambridge anymore, because I don't believe they have a solid finance reputation and investment banking "pull." It is a great program in my opinion, but just not a good fit for my career goals. However, I believe over the next 5-10 years, they will have a much better finance reputation b/c they are getting money from the Rothschild family to improve their curriculum and faculty.
Hope this helps.