Data science Ph.D. program, what do you think?
It seems to me that the premise of a PhD is to expand knowledge in some little slice of the world. Since a "data scientist" is by nature is somewhat of a jack-of-all-trades it does seem a little odd to me. A masters program seems much more appropriate.

What do you hope to gain from a PhD? If the rigor scares (or bores) you, then what about a more applied area? Signal processing, robotics, applied physics, operations research, etc.