Help Cure Cancer had about two years of work left. With the introduction of the GPU app, that is going to shrink by quite a bit. I don't think it's been running long enough to know how much yet. But it could be as short as only a few months. And running the GPU app won't get you much progress on your badges, if that is what you want.

I am running HCC as my CPU project now (in addition to the GPU), to make sure I get my badge goal asap.