And finally released
v1.2.0 for good, with FBInk integration for visual feedback, and a new default watch that makes use of it to print the last few lines of KFMon's log

.
NOTE: Yes, KFMon's startup message, the one shown during boot, may still be printed in a weird rotation and/or location.
That's a known issue, but I can't easily replicate those early boot conditions, and they may be device-specific in a way that's hard and/or annoying to detect.
Plus, on-animator's progress bar will overwrite it pretty soon, so at best you'll see a flash of something resembling text, and that's it. (I've always had to resort to video + frame-stepping to figure out exactly how wrong it was printed ^^).
I may end up just ditching that text if it annoys me too much.
Also, to people who ran a 1.1.0 RC: I fixed a bug that prevented messages to properly show on screen when you happened to add a new watch icon in a small batch (meaning it'd be shown on the Home screen). The fix never made it into any released RC. Stuff worked perfectly fine for existing setups with every watch processed, though.