Filed under: iPhone , App Review XRoad gave us one of the first Nav apps for the iPhone. It's still for sale under the name G-Map West or East, and gives users either a Western or Eastern U.S. version. It was pretty basic when it first came out, but there have been many improvements. Now the folks at XRoad have a new app that covers the whole of the U.S., Puerto Rico, and Canada, and it's on sale for US$39.99. The new version of the app brings text to speech to the party, free traff