Information For Creation Of Springboard Modules?

SL33Z3 asks: "I've been toying with the idea of creating a Handspring Visor Springboard module. However, since I have no real formal training (and don't plan on it anytime soon), no hardware knowledge and am very new to C/C++ programming, I have no idea what to even search for when looking for documentation and technical publications for beginners. Where can I find the information I need with at least some very simple examples of how to handle simple I/O operations on a proprietary piece of hardware? I've pored over the technical documentation on Handspring's site and viewed the hardware specs and even got excited to find all the parts and accessories I needed were easily accessible and reasonably inexpensive. If I can get some help, I'll be glad to start developing and posting my experiences on a site for future beginners to view as well."