Yep, by reading the last news, one could ask himslef some questions about the activity of this project : many months without a single news, it seems to be not very promising...
But there is a very simple reason : we do not use the sourceforge web site for our communication (well, actually we could generalize that to "we do not make a lot of communication"). In fact we just use sourceforge for the CVS and the mailing lists. So, of you're asking "Wow ! 10 messages in a whole year ! Where is the life ?!", the answer is "Look at the mailing lists archives". Everything that is related to the developpement of Orion3D is talked about in the orion3d-dev ml. With an average of 130 messages per month, I consider this to be quite active and living ;).
For all the rest (including new releases etc.), prefer visiting the Orion3D webpage http://orion3d.sourceforge.net than waiting for weeks on sourceforge.