The Bit Bucket Blog is reporting that you can now get a free Flex license. Looking at requirements its the basic non-commercial and non-institutional manner, which in a nutshell seems to be as long as you don't advertise on the site, sell anything from you're pretty much good to go. Check out The Bit Bucket Blog for a brief, but better than mine, explanation of the requirements or go to macromedia.com/software/flex/productinfo/faq/#ancni for all the details.