I've been feeling naked lately.
I've been trying to get used to not wearing my MystiTool HUD. I've taken it off for all the events this week (Garden City Relief, etc.) because of the scripts. Having it off in general does improve my performance in SL. It's the scriptiest thing I wear and I only use one function; the area scanner that tells you what avs are around you.
In Viewer 2.5, the people tab will tell you who is around you. Although it is clunky to get to (as everything is in Viewer 2.X) and I don't want the tab open and blocking my screen all of the time, it does serve the same function.
Occasionally, I'll use the dance function of my Mysti, but in a pinch I could just use dances straight from inventory. Oh, I use the Lucky Chair detector sometimes. That's it.
I don't think anyone has heard from the creator, Mystical Cookie, in ages and ages. I wonder if she will ever be back to update the Mysti? I wonder if anyone will ever build a 'new & improved' version of it?