To the best of my recollection the voice navigation feature was developed and lisenced from IBM. There was an opportunity back around 2001 where we had developed a product called the Nuk which was jointly developed with Learnout and Hauspie. Intel had partnered (to the tune of 20M) with them and included us and IBM in the development of the Nuk. About a month before the product was launched L&H was caught cooking the books. Their shareprice sank from around $60.00/ share to practically nothing. They were a Belgin outfit and have long since gone belly up. Their technology that we helped develope was sold to a New England based entrepreneur. I'm not sure what ever happened to it after the dust settled.
Larry