Yug, it is a Manzano. See the following document:
http://www.ctahr.hawaii.edu/nelsons/...nymsHawaii.pdf
According to this document, the main banana called "ladyfinger" in Hawaii is Manzano, or true Apple.
Your "dwarf apple" is more commonly known in the mainland US as dwarf Brazilian.
To my tastes, you have two real winners, which are quite distinct from each other.