have some noob question here:

1. Bought recently (this june 2012) a 3760lmt here in canada will i still be able to convert to 34xx fw?
2. Also have an iphone4 with garmin 2.0 usa app (changed it to na 2013.10), is the nav in the iphone ok to use for long trips or is it better to have a stand alone garmin nuvi so their will be no drop gps signal?

thanks in advance for your help