I spoke with a Rich Ajax Platform (RAP) committer briefly today and he reminded me that the RAP team recently released 1.3 Milestone 1 to the world. This release marks the first milestone towards the Eclipse Helios release and includes some interesting features like rounded corners, gradients and support for cheatsheets.
For those people interested in single sourcing their Eclipse RCP applications, they will be pleased to see support for more RCP APIs in this RAP release. Check out the new and noteworthy for more detailed information. Also, the RAP team published the project plan for 1.3 with suggested and committed items for this release. If you have any additional input or questions on the plan, feel free to discuss them with the team on the RAP mailing list.