They are... open to using a different curriculum (e.g. Singapore Math) if we decide we want to use that.
I would try to get hold of some Singapore Math materials before you buy, to see how much you like them. I'm ambivalent about the way some of the material's presented, though it is certainly not even close to the worst I've seen.
They are also doing a "Think Outside the Box" program for the last period of the day, where the students get broken up to do more work on various topics that require critical/creative thinking (e.g. some topics are Odyssey of the Mind, Zoology, Functional Geography, Botany, Robotics, Math Lab, etc. They will have one section that is only for gifted students, although the gifted kids can choose a different topic if they would prefer.).
That sounds like a little slice of heaven!
To top it all off, I think in large part because of our pushing and insistence that there are a good chunk of kids who are ready to accelerate in math, they are going to try ability gropuing.
That's awesome. You have achieved lasting change in your school, and you're just getting started. I'm keeping my fingers crossed about our public elementary, as they seem receptive and willing to be creative so far, but we haven't achieved anything like that so far (though they already do some amount of ability grouping, by classroom and also within the classroom, and I have a generally high opinion of their methods in general, despite the lack of a GT program).