Ready to flex a little Flex? In Flex 4 SDK and Flash Builder 4 Beta Preview, developer and Adobe Certified Instructor David Gassner describes how to get started with the Flex 4 SDK, and gives a tour of the new Flash Builder 4 (formally known as Flex Builder). David walks through Flash Builder 4′s installation and deployment options, and highlights its important features, including working with Spark text controls in the Flex 4 SDK and creating Flash components in Flash Builder 4.