Thomas Steiner has announced plans for a couple of tools to simplify RESTful development based around WADL. Tentatively titled "Google REST Compile" and "Google REST Describe", the first will read a WADL description and output client code for a variety of programming languages whilst the second will aid in producing a WADL file from an existing textual description. I'm delighted to see others picking up on WADL and hope the project goes well.