DevNet has been dead for awhile, but why hasn’t Macromedia/Adobe decided to release the old DevNet Resource Kits (at least the items that were owned by Macromedia) as open-source? If you aren’t going to sell it anymore, don’t bury it.

There was some good sample apps and extensions in there that could either be used as-is or updated (provided the source code was supplied) for the newer product releases.

List of all 9 resource kits:
http://www.macromedia.com/software/drk/productinfo/all_volumes/