The quirkiest product appearing at this week’s DEMOfall 2006 conference, a springboard for tech startups, had rabbit ears–and not the kind for televisions. Violet, a small French company, showed off a plastic white bunny named Nabaztag that connects wirelessly to a home’s computer network. Its ears can twirl or point up or down to notify you of incoming email or the rise and fall of stocks. It can read emails or news headlines aloud, converting the text to speech. It can announce the time or play songs from your digital music collection. Dash Navigation unveiled the first car navigation device designed to constantly stay connected to the Internet. The always-connected feature lets Dash Express do more than the current crop of satellite-navigation products. The gadget taps cellular and public wireless, or Wi-Fi, signals to stay linked to the Web, getting the freshest available data on traffic conditions. It can also do Web searches for locations or products, the cheapest gas around, or movie times–and then direct you to the destination.