Looks like there's at least three of us actively running this right now!

More than that. Acm, myself, Watchmuh, you, and Leviticus. There might be more under the radar.

There's a lot more than that now, but in general this game and system combination isn't going to be as popular as say the Dr. Mario (NES) community. It should still be a very active community. I definitely plan on doing more speedruns of this in the future, but right now, I've got to focus on the NES version.