Adobe Flex Builder 3 software is currently available for free for software developers who are affected by the current economic condition and are currently unemployed. Flex Builder Pro 3 is normally $699 to purchase, so this is a pretty generous offer. To receive the product under this program, you must attest to the fact that you are currently unemployed and that the software will be used only for your personal use not for any production or commercial purposes.

More info: Adobe