Technically yes....the 2010 SEUC comes with a built-in Nav systems in the HK radio. Practically speaking it comes with no Nav system and you might as well plan on it not being included. The Nav system in the HK radio requires giving up the CD player, reading words on a dismal screen output without a map that's impossible to read in any daylight, at an angle that makes it impossible to just glance down and the directions, on a database that's ridiculously out of date.
The stock Nav system is a dangerous POS that's more likely to cause you to get in an accident that it is to get you to your destination. HD should be ashamed even calling it a Nav system and listing it in any of their literature as a "feature". If anything, its a dangerous "feature". I'd love to see HD's internal statistics on accident claims that the rider blamed on that incredibly stupid system.
Do yourself a favor and get a Zumo. Your Zumo will be the single best upgrade you'll make to the bike.