You have to remember he is still quite young and the decision he has to make will be tough whichever direction he takes. The pressure to play for a strong Euro sides are true, but the world game is global and the traditional powerhouses won't have a monopoly on players as they had in the past and so spreading the talent around and making a competitively even playing field somewhat in the mid range teams that does knock off the top team more than often.
With plenty of players taking the NZ way in recent times, it seems so similar to players going Australia way before 2006 like Tim Cahill and it strengthen their team big time, such that now they are in the top 20 and is the dominating team in AFC.
About 10 years ago, clubs like Leeds United were signing yound Australians and trying to get them to commit to England. Jamie McMaster is a case in point.
Players like Shane Lowry, Rhys Williams and Neil Kilkenny would have, 10 years ago, committed to play for a British or Irish national team, but because we had re-built the game here over the past few years, many realised that it was far better and easier to play for Australia than adopt a British/Irish country.
Don't forget, the 2004 'Tim Cahill' rule change at FIFA indirectly benefitted you guys last year, when Fallon and McGlinchey chose to represent NZ after representing England and Scotland respectively at youth level.
But to stress again, Australia benefitted from the '50/50' players because of improved conditions withing the Australian game in the past few years.
DS
PS - Love how some on here call Tim Cahill Samoan, he played for them for 20 minutes as a 14 year old. He missed out on the Sydney 2000 Olympics because of that stuff up!