You flatter me, Sir. Women generally avoid me like the plague, especially teenaged girls.

Thanks, but i wasn't for a moment suggesting that if you can do it that you then release a 'how to', that would be foolhardy if not insane. An app would be nice if someone couldn't reverse-engineer it to discover it's mechanism, but an on-line facility would be safest i guess. Anyhoo, yet to happen.
Your self-depreciating comments are noted but not admitted regardless of forum .... 'most stupid man in the thread':

Back to redrock3: If he hasn't topped his nuvi or himself thru boredom at our digressions, I wonder has he managed to backup 41 conventionally or with your modded ldr bin method?