Hello All, I am ready to invest in a offline navigation program for my iDevices. I've done my research on this forum, and I am nearing information paralysis........ One thing I am unsure about is if I purchase the Navigon US app..... can I purchase other country maps within the app... or do I have to download (buy) the other Navigon Apps? In particular I am wanting the US, but I want to be able to buy a few European maps as well (I regularly travel there). If the answer is yes, then hallelujah. Follow up question..... is it more economical to buy additional maps in app, or to buy the other app through iTunes? Thanks !