23. A navigation device for dynamically generating a recognition grammar in an integrated voice navigation services environment, wherein the navigation device comprises one or more processors configured to: receive a natural language utterance that relates to a navigation context; identify a current location associated with the navigation device; generate a dynamic recognition grammar that organizes grammar information based on one or more topological domains associated with the current location associated with the navigation device; and determine one or more affinities between a user that spoke the natural language utterance and one or more peers associated with the user, wherein the dynamic recognition grammar further organizes the grammar information according to the one or more determined affinities generate one or more interpretations associated with the natural language utterance using the dynamic recognition grammar.
29. The navigation device of claim 23 , wherein the conversational language processor is further configured to modify the grammar information in the dynamic recognition grammar in response to one or more changes to the one or more topological domains associated with the current location associated with the navigation device.