Before you get all rowdy, take a gander at this… Yes, another PSP Atari emulator; however, this time ’round KangKengKingKong has added IR keyboard support! Whaaaaat, not ZX-81?! Nope, KangKengKingKong has further enhanced ZX-81’s most recent PSPAtari release by adding support for the following IR keyboards:
Targus Universal Wireless Keyboard
Palm Universal Wireless Keyboard
Palm Wireless Keyboard
Perfect for those who wish to play Infocom games under the Atari 800.
Some additional notes (from README_IR.txt):
If there are any issues with the emulator, please check that it has the same problems in the non IRKB build before reporting to Zx-81. It could well be that the IR code broke something. Send comments or queries to my email address above.
Very bright direct fluorescent lighting will cause the IR detector on the PSP to behave badly, triggering keypress events.