I thought it would be useful if I posted some of the version numbers I have come across on the unit.
From what I can tell, the unit has not been updated since factory.
CTP 2011 Software Version 3.10
On a seperate screen it lists Software Versions:
Text 3.10 (American English)
Audio 1.80 (American English-Jack)
Basemap : WW Autoroute DEM Basemap NR 2.00
Map info : OEM City Navigator North America+Mexico NT 2011