A predictive software model (PSM) is any model extracted from software engineering data that can be readily used to make a prediction regarding some aspect of a software system. In this paper, we present some well known applications of predictive software models, and propose new potential applications for PSMs. We also introduce the promise software engineering repository of public datasets. The purpose of this repository is to promote repeatable, verifiable and refutable research in the area of predictive software models. We conclude the paper with our observations about the software engineering datasets used in building PSMs