Microsoft is taking a multifaceted approach to interoperability including collaboration with partners, developing interoperable products/technologies, promoting standards, and providing developer resources. This includes tools like Eclipse for Silverlight which allows Eclipse developers to build applications with Silverlight, and SDKs for Azure that enable PHP, Java and Ruby developers to leverage Microsoft cloud services. Customer feedback has been positive for these cross-platform tools and Microsoft is continuing work on interoperability bridges between technologies like RIA, SOA, identity and web services.