I am having issues with the Google Navigation beta. It will run sweetly then for no reason it will disappear, for me then to restart the navigation. I dont get any force close messages or other errors, its as if it is exiting the application by its self. Also no arrow icon in top bar when it disappears. I am using it on Launcher Pro. No task killer installed (after reading Lekkys advise) and its connected the the charger. Time of closures vary from 10 mins of use to 1 hour of use. Any ideas or suggestions would be appreciated, as its a great application and saved me up to 1 hour of congestion, as could see the traffic issues miles ahead and make alternative route.