While I've mentioned this verbally to people that I know, face to face, over the phone and in e-mail, I haven't really set a stake in the ground: I've shut down the formal consulting part of my life. I've been wrapping things up since the beginning of this year and transitioning things to others as much as possible.
It would be wrong to say that I'm shutting down "Radiotope," as it existed before I was formally consulting, and will continue on now.