I just noticed this at the App Store - for those who didn't already buy the Navionics US and Canada iPad app, the price has gone up to $49.99 ($34.99 US only).
As Pat and David have stated, the iPhone version will run on the iPad, but not vice versa. There is a difference in resolution and full screen viewing between the iPhone version and the iPad version on the iPad, but the iPhone version is certainly serviceable on the iPad.
As Pat and David have stated, the iPhone version will run on the iPad, but not vice versa. There is a difference in resolution and full screen viewing between the iPhone version and the iPad version on the iPad, but the iPhone version is certainly serviceable on the iPad.