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.
Skobbler uses the free editable OpenStreetMap to create apps such as GPS Navigation 2, and ForeverMap that provides maps offline that work when you can't be online. The company has just released the Skobbler tiles API. Compatible with popular frameworks like Leaflet, OpenLayers and Google Maps API v3, its API allows you access to its tile server and to embed maps in your applications.
Soon you will be able to query Google's vast database of local businesses. Today the company announced Nearby Places, a Google Maps widget and a web service, with its eye on providing data to users on the go.
BikeSpike created a handy piece of hardware that easily affixes to any bicycle frame. The device contains a GPS device that can certainly track your mileage or help plan a route; but let's face it, your smartphone can do that much while sitting in your pocket (or underneath your biking tights). BikeSpike's mission goes beyond a simple GPS. BikeSpike offers automatic crash and tamper protection. BikeSpike aims to help users when they are unable to actually ride the bike. To spark further innovation around its hardware, BikeSpike provides an open API targeted at the developer community.