- Debug output for application development, with possible integration into the SDK (as a library and a replacement driver on the PSP side)
- Serial console for Linux (a must have device indeed!) or any other applications
- The serial protocol is a simple, well known and robust protocol, with loads of existing applications ready to be used. You could even use a PSP for dial up access!
- Hijacking the UART4 PSP driver to use the Remote UART might give us access to the low level debug functions of the PSP without the need to tear it apart in order to access the internal UART
- The remote is a very optional device for the PSP => it can be used for other purposes (eg. debug) without interfering with standard operations (USB, WiFi, ...)
- As a serial device, IRDA could be used as well, but not everybody has an IRDA receiver. On the other hand, almost every computer out there has a serial port (sorry Mac users - this is the one thing that Apple did get wrong!)
