OMG. I just ran
"titty" (tiny tty script) on my PW3 with its amazing resolution. I know that the titty text output on the eink display (with tiny font) is quite readable (at least to me, but on an 800x600 display like a K3 or K5). On this PW3 the text is so amazingly small I will need at least a 10x (jewelers loupe) lens to even read this text -- it is that small.
I needed to type the commands to pause and resume the framework (copies from my "geekmaster kindle video player" startup script, so that the framework would not corrupt my onscreen font with its title bar intrusion... It works great with a launcher script to do that, just like all my eink demo apps.