So the reason for the alomost war of 1846 are now gone, and the Brits dont' gain all that much territory, sounds like msot of the noise is this new country and the Native Americans getting a large swath. Also one of the reasons behind the Civil War are gone, Texas may stay in Mexican hands....who knew that a war that many Americans figure isnt' a big deal coudl have large ramifications.
PS: Ya we won!
Maine will look nice as part of New Brunswick in fifty years....if Canada does indeed form. The lack of defense was a large reason for the formation of Canada, but this time the defense against the "American agressors" was in force. Hmm...