A French PSP website, PSP-Generation has informed us that the alpha build of Yoshihiro's PSX emulator will be released tomorrow! Before we go into the exciting news, I would just like to remind everyone that this is an Alpha build and may not run many games at all.
If you recall, PSMonkey / Nexis2600 released the first N64 emulator and it could only play a few demos with poor framerate. So, if you are expecting to play a Final Fantasy game on this emulator tomorrow, I would suggest brining those thoughts down as it most likely will not be playable.
As my High School French is fading away, I managed to grab some important information from the site. This early build will be released with the ability to use ISO and BIN files - just need to worry about getting a big enough memroy stick! The emulator will be released tomorrow at approximately 8:00 PM. I'm assuming this is the time at which it will be in France / Europe at the time, so that will translate into - 2:00 PM EST.