The Eclipse Java Persistence Platform Project (nicknamed EclipseLink) was "declared" today--which is Eclipse-speak for posting the initial project proposal and sending out an announcement to the Eclipse membership.
Along with the declaration, the eclipse.technology.eclipselink newsgroup was created to discuss all things EclipseLink. You'll need to get a user id/password to access the newsgroups but this isn't much of a hassle and keeps out the spam. You can access the newsgroup via your news reader or through the Eclipse News Portal.
The project is now in the Proposal Phase where the proposal is discussed and refined. The end of the Proposal Phase is the Creation Review where the merits of the project, as described in the proposal, are discussed and a decision is made as to whether it should proceed. If you have any ideas or comments that would improve the proposal or any questions about it please post to the newsgroup and get involved!