I think he meant a version specific to the iPad
Four simple steps:
1) Jailbreak your iPad.
2) Download the iPhone version of Navigon. (Legally - it's nice to repay developers for their work - but it will work if you get it by other ways).
3) Download and install Full Force, using cydia (Big boss repo)
4) Then go to "Settings" click "Full Force" and select "Navigon ... (whatever region you chose), then it will look like a iPad app.
Pics (Look at post: 25)