Cool. Having even just one or two people interested should really be good incentive to keep going. I'm hoping that there are a lot of people that feel that way. Maybe this will inspire you or someone else to do something similar for another perspective, maybe even a different language.
I like the milage/maintenance idea and will keep it in mind.
PDA Toolbox looks like a nifty program, but is really more of a database program than a regular programming environment. So I guess you're right... I do want to get my hands dirty with some "real" code. I just don't want to wade in so deep that I drown.