Yup, leeched it yesterday. ^^
The alternative Borderer styles are in a similar vein as those found in Hyboria's Fiercest: Nordheimer get War Swords, Gunderlanders get Pike, and whatever befits a race.
The clue is that these new styles not only exchange the combat feats at 2nd, 5th and 11th level, but some also replace one Favored Terrain (1st or 2nd) with a more generally useful combat ability.