I've just posted version 0.5 of Mini Micro! This version rounds out the pixel display drawing routines, including drawEllipse, drawPoly, and fillPoly. In addition, all the "draw" commands, plus line, now take an optional penSize parameter, allowing you to draw lines, rects, ovals, and polygon outlines that are more than 1 pixel thick. The turtle module in /sys/lib has been updated to have a penSize property too!
We've also added a mathutil module in /sys/lib, which provides functions for testing whether a point (or any of a whole set of points) is within a polygon, converting degrees to radians and back, and other handy stuff.
You'll also find a new Tic-Tac-Toe demo in /sys/demo, which uses the new pen size parameter to draw the board. It also plays a half-decent game, but could probably be made smarter... why not see if you can improve it?
This is the last major feature update for Mini Micro. All the pieces are in place now! Version 0.6 will focus on fixing any inconsistencies or small gaps in the APIs, making more demos, and polishing up the ones we have. Version 0.7 will probably focus on performance optimizations. And as always, if any bugs are found, they will be promptly squashed!
So give it a try, and please let me know what you think!