There was a write-up in a recent issue of G&A. I don't regularly read G&A, but looked at a copy at a convenience store, after getting a heads-up on some forum. I have been looking out for a .22 SP101; this re-intro will make my search easier.
The true adjustable rear sight IS a good thing to see! The windage-only rear sight on my .32 H&R is, well, it is there.