Just updated 2011 map on my old Garmin Nuvi 250W, it's super easy, took me about 40 minutes. 1.29 GB file transfer took a little more time. Follow the instructions in youtube.
"City Navigator North America NT contains a fully routed detailed maps with more than 6 million miles of pavement of the
Maps with complete coverage of the
Support postcodes for
Detailed maps, including highways, toll roads and roads in residential areas with an indication of narrow roads, turns, speed modes.
Displays nearly 6 million POI: point of food, lodging, entertainment, shops, post offices, hospitals, camps and much more;
Traffic data for compatible devices.
Expanded coverage for
Voiced street names (eg "Turn right on
Update
Released: 2010
Format: IMG (Garmin)
FID cards: Not required
Language: English
Hardware: PC/PPC/Symbian Garmin Mobile XT, Garmin Nuvi, Streetpilot"
Download Links (torrent file)
or
http://thepiratebay.org/torrent/5974610/Garmin_City_Navigator_North_America_NT_2011.30_Unlocked
YouTube - How To Update Maps On Garmin GPS For FREE
http://www.youtube.com/watch?v=DBlS0fzW*****Y
YouTube - How to Torrent Files on the Internet (HD Tutorial)
http://www.youtube.com/watch?annotation_id=annotation_546056&v=cmMWVqqOuRI&feature=iv
Enjoy!