The Mapbox Android SDK by Mapbox allows interaction with the mapping features of the API. Resources include installation with Eclipse, Gradle, and source. Implementation references cover required permissions, the MapView, overlays, and screen rotation.
Online driving directions pioneer MapQuest had the first free directions web service a year ago. Now it followed up with the same engine based on the wiki-like Open Street Map data. The new, open service follows an open version of the MapQuest tiles.
Following-up on yesterday's post on the best new mashups, here is another notable mashup from this past week, yesterday's Mashup of the Day: Gaiagi Driver. What is it? It's a mashed-up 3D driving simulator that uses a lot of web APIs across multiple windows to create a unique driving experience. Give it a starting and ending address and it follows the path created by the directions and shows your present position in four different views: