In any promotional things I did not notice anything about GV integration. I am the maintainer of Dialcentral and that is available in testing form only for the n900. Contact me or join the discussion on the Dialcentral thread if you are willing to take the risks of enabling premature software by enabling testing. I am working on another project called The One Ring which is GV integration for the n900. It is still in heavy development and not ready for any use outside of debugging. I hope to have it ready for testing within the month.