Hi,

I've been using a USA map from http://www.openmapchest.org/maps/united-states on my Garmin Nuvi 1450. In Connecticut it works quite well, but I drove into NYC yesterday and it couldn't find a single address.

I was trying to find: 311 W 51 St. Nomination shows the address as:

• House 311, West 51st Street, Midtown West, Manhattan, New York County, New York City, New York, 10019, United States of America

I tried finding it in both "New York" and "New York City". Manhattan and Midtown West are not listed as cities. I even tried the intersection search and nothing came up. NYC has a near complete set of street addresses, so I expected I would have good results using OSM data. 

I know the boundaries of NYC can be challenging at time, because the city has five boroughs, lots of neighborhoods and a ton of data. Today, I navigated to the approximate location on the GPS, and it decided the location was in Weehawken, NJ., (which is just across the Hudson). On my GPS, I did a reverse search, and it showed the address being in New Jersey! 

I didn't build the maps myself, and I don't know how the splitter works. Clearly Nomination has the address figured out correctly, but mkgmap does not. 

Brian