As far as I know, there is currently no JAXB implementation which would work on the Android platform.
I would like to ask a simple question - Is there a need for JAXB on Android?
Being a JAXB enthusiast, I consider writing a JAXB implementation for Android. I probably won't port JAXB RI since it is a bit too fat for the mobile apps, I'd rather write it from scratch. I wrote a JAXB port for JavaScript, so I know this is manageable.
But do you guys need it? Or do are you comfortable with other tools like SimpleXML?
As an Android developer who does lot of XML and JSON parsing and framing in almost every app I develop, my answer would be: No, there is no need for JAXB on Android. The other tools fit the bill perfectly. Either that, or we Android developers have got used to the absence of JAXB and each of us have gotten comfortable with one of the alternatives.
In my case, I even achieve code reuse by replacing JAXB with my favorite Android XML serialization library on the server as well.