Tom Ball
If you switch to two different pages at same time. Intended semantics: last switch (in rule order) wins.
there's no verbal indication when a menu (picker) becomes visible, or disappears
https://microsoft.github.io/microcode/docs/samples/double-counter loses b press on switch to page 2 and a press on switch to page 1 needs to bump counters on page switch as well
last writer wins, per our semantics, but the following program shows a smiley, not a cyclops 
- [ ] slider - [ ] rotary encoder - [ ] buttons - [x] LED ring - [ ] light sensor - [x] magnet sensor
It would be nice if there were a way to transfer the MicroCode program between web app and micro:bit (not just compiled program, which is sent over Jacdac to micro:bit).
When a picker menu is displayed (by clicking on a tile in the underlying program), the UI does not show which underlying tile was clicked on. Makes screen snapshot harder...
Consider Filter tiles for the following - [ ] greater than - [ ] less than - [ ] equal to - [ ] changedBy(delta), for firing when a sensor's...