Modified theories of Gravity have been discussed before in this 2-year old question, Are modified theories of gravity credible?
I was going through Moffat's modified gravity, given in http://arxiv.org/abs/gr-qc/0506021 , but before investing too much time into it, I wanted to get some clarifications:
1)What is the present experimental status of the theory?
2)I read somewhere that the theory has is free of singularities, is this true?
3)Although I don't know anything about the details of the theory, it seems a little contrived and unnatural to me, with the variable Gravitational constant and all the extra fields in the action. Am I unjustified in thinking this way?