From the interview board, it appears as if I am the only one on here that has gotten an on-site interview from Mayo thus far. They started to do phone interviews and request letters of recommendation about a month ago--according to the one book I have, only about 15 percent of applicants are asked to do this. If you "pass" this step (which about 20% do), you get an on-site interview. I know they started interviewing last week Monday, and they interview people Mondays, Thursdays, and Fridays, and it usually is only a couple each day. Overall, Mayo has an acceptance rate of less than 3%--the lowest of any school in the nation. For that reason, many people are reluctant to apply. Also, Rochester, MN is a relatively small town by med school standards.
I think Mayo has a lot to offer, and I am very excited about interviewing there. However, I can understand why many people are reluctant to apply. They offer a lot of good opportunities, but to such a select few. Hopefully I will be one of those few!