Got the map update yesterday. Took a few hours to get it updated. You need the serial number(last 5 digits) from the USB package, the device ID from your NAV, and your VIN, in order to get an authorization code from the mapnsoft website.
Map version is 5.x now. Also software version v529.
Differences I noticed from v3.
Bluetooth contact list now has firstname lastname, rather than lastname, firstname. This is with a Verizon blackberry curve 8530.
Maps are updated, but still about a year old. POIs are really old, like 5 years or more old.
The are some new interface options on the maps. You can enable/disable the menus on the left side. There is also a quick menu that you can setup on the left with a yellow star.
Also, when you start up, the map defaults to showing the last 5 destinations list, and some other favorites. This goes away after a few seconds.
Some of the text/fonts seem diffenent, the color on the map is different.
You still have to say Call Name, then say the name. You can't just say call John smith.
I performed the voice adaptation in the help menu. It had different phrases to say. Not sure if this helps with anything, but its fun.