"Ruby on Rails 2.0 (RoR) is the first major release of the popular dynamic language framework in 18 months. At its heart is a fundamental decision in how the framework will work with Web Services.
"Instead of SOAP (Service Oriented Architecture Protocol) support in RoR, the open source framework has instead decided to focus on the competing REST (Representational State Transfer) protocol. The move could make RoR even more popular as it ramps up against other development frameworks.