Rusty has hinted about it for a while, but he's finally made XOM available after presenting it to the NY XML SIG.
XOM is a new XML object model. It is an open source (LGPL), tree-based API for processing XML with Java that strives for correctness and simplicity.
His pages contains the presentation given, which includes a nice overview comparison to JDOM, EXML DOM and dom4j.
fwiw, I think XOM more closely resembles earlier versions of EXML. I've got to wonder if the world will accept yet-another object model, even if it is superior. We'd all like to hope so, of course. But, I think we're bordering on xml object-model exhaustion.
Regardless, jaxen will probably support it sometime soon, bringing to the total number of models supported by jaxen to 5.
