I want to suggest a new tag - Language. This would be used by questions that ask about giving robots speech abilities. For instance, this question could use the language tag (https://robotics.stackexchange.com/questions/1476/does-xaiml-have-any-potential-future-in-language-abilities-for-robots).
I have added the natural-language tag to your question, but sadly it has become apparent that your question is just a thinly veiled advert for your project.
Please read What kind of behavior is expected of users? and avoid self-promotion in the future. If your question had been a practical, answerable question based on an actual problem you face, then this self-promotion would probably not have even been spotted.