G'day Joe, sorry to hear about your brother. Good you're keeping his pristine kit maintained, best way to remember him i think. I run OSM Aussie map on an old StreetPilot 2610, for basic units without the fancy files like eye-candy JCV etc the OSM is as good as a current Garmin NT mostly, in some places around Oz even better. My SP is a US purchased unit that i used in the States, albeit briefly, with OSM. Alongside a nuvi 1350 with CN it seemed up to scratch in many states but i didn't get to try it in TX.