This soon to be released GPS has me intrigued. My Nuvi 550 drove me nuts on my last rally. It would continually lock up on me, and also lose external power. I'm thinking the mini-usb port is probably shot. Anyway, I'm looking for a 2nd GPS to compliment my 590. I really don't want another from the Zumo family as they are all pretty similar. I'm thinking this new 276Cx might be the ticket. Suppose to be released later this month.
http://globeriders.com/article_pages/article10_gps/article10_gpsmap276cx.shtml
http://globeriders.com/article_pages/article10_gps/article10_gpsmap276cx.shtml