Although I own Garmin Mobile PC, and have used it extensively in North America and Europe, this thread strikes me as a perfect example of a product that has lost it's way by over-complication.
All this talk about nRoute, Mapsource, locked maps, unlocking, having to use things in certain order, compiling, MyGarmin accounts, codes, and so on, makes me want to throw the whole thing up in the air, and go screaming for my sanity when I just read through it!
Were I an absolute rookie, that is exactly what I would do! Surely there must be a better way of marketing what should be a reasonably simple matter....?