JAXB RI 2.0 EA3
I just posted the early access 3 release of JAXB RI 2.0 on java.net.
What I really like about this version is that it's released under the CDDL, so you can play with it, use it, redistribute it, bundle it into your app, etc, etc, freely.
Even though it's EA, it's extensively tested --- roughly 1800 tests including all those industry schemas, contributed schemas, regression test cases --- and it passed all of them (nightlies do get the same tests, but they don't have to pass). So you can feel comfortable that these bits will work.
I expect this to be our last EA toward EA3. The next release hopefully will be the FCS (or "first customer ship"), which means the spec is finalized and the RI passes all the TCK tests.