Now Adobe has shipped Flex 4 and Flash Builder 4. This is a significant release with lots of new features and we are all proud of it. I'd like to take a minute to help you get started with the documentation and other learning resources. You should start by reading the introductions from our Product Managers: Deepa Subramaniam's intro to Flex 4 Andrew Shorten's intro to Flash Builder 4 Also, if you are a Flex 3 customer, you should read Joan Lafferty's Differences between Flex 3 SDK and Flex 4 SDK article. We've provided a rich set of content for Flex 4 and Flash Builder 4: Using Adobe Flex 4 (PDF) – Flex SDK and Framework usage content. This book combines the Flex Developer's Guide, Creating and Extending Flex Components, and Building and Deploying Flex Applications. Using Adobe Flash Builder 4 ( (PDF) ) – Flash Builder usage content Adobe Flex 4 Tutorials (PDF) – Tutorials to help you get started with Flash Builder 4 data-centric development featur