Amazon helps .NET developers

Amazon launches the AWS SDK for .NET toolkit , which is designed to create applications that interact with Amazon cloud services using .NET.

SDK includes tools for working with: Elastic Compute Cloud, Simple Storage Service, Virtual Private Cloud, SimpleDB, Relational Database Service, CloudFront, Simple Queue Service, Elastic MapReduce, CloudWatch, Elastic Load Balancing and Auto Scaling.
')
It is reported that existing C # / VB development tools will not be supported in the future and Amazon recommends migrating from them to the new AWS SDK for .NET.

Platform requirements: .NET Framework 2.0 or older and VS 2008 or older.
In addition, the SDK code is available under the Apache 2.0 license.

via www.infoq.com/news/2009/11/Amazon- .NET-SDK

PS: I'd like to add that the activity is most likely caused by the speedy release of a whole line of cloud services from Microsoft under the Azure brand.