As odd as it might sound, I never paid attention to the Playstation 2 homebrew scene because I own a Playstation 2 Linux kit. The Linux kit hides the hardware behind a software layer while the PS2Dev project was an attempt to run code natively on the hardware. So the two projects didn’t really have a lot in common. Of course ignoring that part of the scene means I missed out on this serial port mod. The Playstation’s Emotion Engine core has a serial debugging interface and by wiring up a MAX3323EEPE you can watch the processor as it is running. That’s an interesting hidden feature and I hope Sony is a little more supportive of the developer community when the Playstation 3 comes out than they have been lately with the PSP scene.
[thanks fbz via Pixel]