I'm pleased to announce that SpringSource Bundlor 1.0.0.M4 is now available. Please see the Bundlor page for more information about this release.
This release focused on using an OSGi Profile as input for a the creation of a bundle. This blog entry explains how this works and how to add the profile to your Bundlor configuration.
The Issue Tracker has details about what else was changed in this release.