Not that I have found. In fact, all I find is more confirmation that he seems to have been called Barry Obama pretty consistently when he was in Hawaii, starting with Kindergarten.
I vaguely recall reading years ago that some classmate or other had referred to him as Soetoro, but it may very well have been this same woman.
I'm thinking that currently the evidence appears against this woman's claims. If she got his name wrong, how likely is it that any of the rest of her claims are correct?
I'm smelling an odor of Kookery.
If it is a Hawaii “classmate” of Obama that you think you recall referring to him as Obama it can’t have been this woman as she did not attend Punahou school and is in any case of a completely different age group from him.
Some bloggers appear to have unilaterally decided to describe her as a “classmate” but she herself has not made any claim to have been a classmate or even made any claim to have attended Punahou school. On the contrary she has made it clear that she is considerably younger than Obama and that she was never a pupil at Punahou school.
Her claim to knowing him appears to be based on activities which took place in Hawaii outwith periods of school attendance.