Observant readers will recall how yesterday Appcelerator CEO Jeff Haynie told us his new GPL development system is aimed squarely at Flex.
Adobe said in April it will keep Flex Builder, its Eclipse-based development tool, and its Flex Data Services proprietary.
Obviously Adobe is aware of growing open source competition for its development tools and is anxious to hold that competition at bay as long as possible, by open sourcing what elements it must and selling enterprise enhancements.
Flex Data Services, for instance, is server software used to access corporate databases. Not a big deal for small shops, but a necessity for bigger ones.
In its April announcement Jeff Whatcott, a vice president for product marketing at Adobe's enterprise and developer business unit, told Lamonica open source is "a philosophical requirement" for some people, and called Flex technology mature.
Accommodate when necessary, and sell what you can, seems to be the Adobe motto regarding open source. I doubt these moves would be happening if the pressure from open source were not real.
But they are good to see.