This Google Geocoding .NET library created by Andrew Burgess aims to ease the work with the newest API version using Google Maps. Compiling, usage, and return data available. Users can download .zip or .tar.gz.
Zillow has released an application for iPhone users that builds on their Zillow API, the Microsoft Virtual Earth API and the iPhone's GPS capabilities. The Zillow iPhone app detects your location and shows data about nearby homes, including market values, photos, and which ones are for sale. It's a great example of a mobile mashup application that uses multiple APIs in meaningful location-aware context.