edlinfan(23:23:30)
No sound out, sadly (unless you want to bitbang a pin on the parallel port!)
edlinfan(23:22:52)
Similar idea, but with a qwerty keyboard and an LCD that can display 64x16 text with a reasonable font
mirrorbird(23:21:54)
(probably technically not. but Amstrad bought the Speccy rights, and made various z80 machines. i have no idea what was in an E-mailer, surely not a z80)