Wolfram Alpha .Net SDK by Ian Qvist is an implementation that uses .NET/C#. The Wolfram Alpha API focuses on high level computing, and this SDK supports options such as assumptions and timings for symbolical quantities.
Telefonica, one of the largest telcos in Europe, announced Telenor (Norwegian-based carrier) as its first carrier partner for the BlueVia API platform. The first BlueVia API available to developers is billing services. In-app billing services remove the need for marketplaces like the Apple's app store or iTunes for mobile app purchases. Instead, consumers' purchases are added to their phone bills.