"The majority of Flex committers are Adobe employees with most
contributions from outsiders tackling bugs rather than going into
new feature ideas.
"Adobe, meanwhile, is treading a fine line between tipping off
competitors to its Flex plans through the open-source work while
coaxing the community to buy into the Flex roadmap.
"When it announced it was open sourcing Flex in April 2007,
Adobe called the move a way of collaborating with the developer
community to "further fuel its momentum and innovation." Flex is
one of many Adobe's code to go open-source, following - among
others - Tamarin and BlazeDS. The main prize, Flash Player, remains
closed."