Cisco's joining the ranks of hardware vendors that support NDS is viewed as a very strong endorsement of Novell's efforts to push its directory as the central point for managing many aspects of an enterprise network.
As expected, Garmin has taken safety into account -- depending on OEM configurations, you'll likely only be able to operate the center panel while stopped, at which point you can also read and respond to email, send texts, flip through your directory, search for weather, etc.