I just flew back from the Microsoft Professional Developers Conference (PDC09) in Los Angeles. What a week, with a lot of announcements, surprises and achievements on multiple fronts. From the interoperability perspective, a lot happened too.

This PDC09 further demonstrates how Microsoft is making interoperability a priority and reality by demonstrating how − as an open platform − Windows Azure offers choices to developers. We’ve been able to show our progress with practical examples (like WordPress), additional technologies to run on Windows Azure (Tomcat, MySQL) and new SDKs/tools (like AppFabric SDK for PHP, Windows Azure Tools for Eclipse version 1.0). We’re on a journey, but it’s a significant milestone!

Read the recap here.

A couple weeks ago, Microsoft was at ApacheCon. We reported the progress made on the Stonehenge project and presented the roadmap.

The goal of Apache Stonehenge is to provide a public forum to test the interoperability of WS-* protocols on different vendor stacks and to build sample applications that could provide best practices and coding guidelines for better interoperability. The main sample application, StockTrader has been implemented on .NET (by Microsoft), PHP (by WSO2), WSAS JAVA stack (by WSO2), Metro (by SUN Microsystems), Spring (by SpringSource). The latest version of StockTrader uses the WS-Security and WS-Trust protocols for claims-based authentication scenarios. This allows the end-users to be authenticated through an independent Security Token Service (STS) that is trusted by the bank and to pass that token to the broker to process the transaction.

Read the full post on the Interoperability@Microosoft team blog.