Based on the same technology than the PIL-Box (actually using the same PCB), I just released the PIL-IO board combining a mini HP-IL/GPIO (4 logic-level I/Os) and a simple UART-type HP-IL/serial (not RS232!) interface. It is a way to experiment and start controlling the world with HP-IL at low risk and minimum cost.
More details on my HP-IL page
J-F
Edited: 27 Oct 2010, 2:40 p.m.