Yes, I heard of the allegations at the time they were made, but I have not heard anything recently so I don't know whether they went anywhere.
Best I can recall, it seemed like in-fighting over control of the Tea Party name. For all I know, Mr Phillips may be guilty of all the allegations, but I don't think he's some sort of Democrat plant.
Just remember that just because someone looks you straight in the eye, shakes your hand, and says we're on the same side doesn't mean a thing anymore: