A week or so back there was discussion about php wisent support for semantic. For better or for worse J I work mainly with PHP and I was quite excited to hear about this development.
I have tried getting the files packaged with Geben to work before but, (probably due to my modest elisp skills) I was not able to.
My impression from the email exchange was that the necessary patched files had been included into the /contrib directory of the cvs repository, but, currently they do not seem to be there.
Thanks for all the hard work on this, I have not really had a chance to work extensively with semantic due to the limitations of my work and I am really hoping that I will be able to try this out (even if in alpha) and perhaps even be able to contribute something.