Stewart RussellBuilt my PicoCalc. It's exactly the size and heft I imagined the Hitchhiker's Guide to the Galaxy to be.
CrankyOldBugger 
@scruss pics or it didn't happen!
(the A, D, O and P look funny 'cos I couldn't be arsed learning how to draw polygons with holes using MicroPython's framebuf.polygon(). So I made them stencil-style and didn't have to address the problem at all.)