Just added another 'sample' app:
Store Locator: Help customers find you with Google Maps to CodeProject.
I started playing with GMapEZ declarative Google Maps API in Feb, originally just for mapping 'race' courses in Sydney for my running club. Later adapted it for a couple of 'proof of concept' samples related to mapping customer data and delivery truck routes (using Google's driving directions feature).
As well as the article, you can play with the NeedCoffeeNow sample online.