The Strava Go SDK by Strava is an official component to interact with the API. It allows developers to integrate fitness features into applications such as running and cycling. The SDK contains information about activities, athletes, clubs, and gear.
Flat maps have a hard time communicating elevation changes, but now you can access the data to visualize as you want. Google Maps added two elevation services, bringing you the meters above sea level for any point on earth.
Developers working with geo mashups should take note: geospatial startup FortiusOne has said that "geocoding should be a commodity" and has announced that it has released a new open source geocoder. If you're not familiar with geocoding, it is the process of assigning geographic coordinates to a location (typically an address or place name).
Though Google Maps may still be the choice of most developers, Bing continues to be a contender. Microsoft evangelist Chris Pendleton points out a new Weather.com feature and mentions it has used the service since back when it was called Virtual Earth (the switch only happened this June).