Interesting -- hadn't seen that entry.
Current status is "waiting for interested users". :-)

Meaning that current functionality (core Stax 1.0 implementation; plus most of Stax2 extensions) is stable, usable and complete.
But next steps to take would be big (DTD support, hooking Stax2 validation API); except for fairly simple things to complete async API.

So... if there is interest for NIO part, we would be interested in working with others in this area.
One immediate thing to work on is just the API (how to feed content into parser, nothing fancy, how to check whether current state is acceptable parsing end state); and second one hooking up the rest to do the feeding.
Finally, there is one missing piece wrt parsing: handling of xml prolog. That is not a huge undertaking, but needs to be completed for real use (for now, one just has to strip out xml declaration to test async functionality).

Put another way: project is not dead, I have just been busy with other projects (mostly Jackson json parser).
Also, while adoption has been limited, there is at least one product now shipping with Aalto, so maybe it might be time to start "selling" Aalto bit more.

-+ Tatu +-