SociACL has been in our hardware/software stack plans for years now. We hope to start releasing usable code and a working web API shortly. It will be a critical part of our access control available in our mobile phone SDK for the Flex Modules.
SociACL will be useful for website resources and a wide variety of device access controls.
Any software related will be released under BSD or MIT license. SAAS or cloud based software will be AGPL.