it is habitable... but not yet....
The water might be too little to sustain a population...
I thought in few years of time, moon will be utilized as a space center for space exploration.
One reason is that if you launch a space shuttle there, it would only utilize a small percentage of its fuel
to be outside of moons gravitational pull (because it has very little gravity). Therefore, they will have more fuel for exploration.
Secondly, scientist will have vast space for its experiment in space travel or having space observatory.
Although, the problem on food and water and fuel would be in great factor...