Project Zero is a project in IBM that I've been working with over the past year.
Project Zero is an incubator project started within IBM that is focused on the agile development of the next generation of dynamic Web applications. Project Zero introduces a simple environment for creating, assembling and executing applications based on popular Web technologies. The Project Zero environment includes a scripting runtime for Groovy and PHP with application programming interfaces optimized for producing REST-style services, integration mash-ups and rich Web interfaces.
Personally I think there are three important aspects to Project Zero: