Just downloaded 2011.4 map update.
http://www.poi-factory.com/node/32308
And http://www.poi-factory.com/node/32298
Yes
http://www.poi-factory.com/node/32308
Tampa, FL - Garmin nüvi 660 (Software Ver 4.90), 2021.20 CN NA NT maps | Magellan Meridian Gold
And
And http://www.poi-factory.com/node/32298
Nuvi 350, 760, 1695LM, 3790LMT, 2460LMT, 3597LMTHD, DriveLuxe 50LMTHD, DriveSmart 61, Garmin Drive 52, Garmin Backup Camera 40 and TomTom XXL540s.