Absolutely terrific guide... makes the exploration process much easier.

Some notes..
1) Mapquest says it's available from $4.17/mo. I'm wondering if they've changed their pricing system from a 1x fee to a subscription based product.
2) MobileTracker seems to fit in the "tracker" category and not the routing one.
3) CoPilot Live... for some reason I couldn't see where to download. If anyone has a direct URL, pls post.