The minumum wage increases to $9.50 an hour today - but the CTU isn't happy. And they have a point. The value of the minimum wage has been eroded over the last 15 years, and while Labour has increased it by over $2 now, it is still worth less in real terms than it was in 1987. And at the present rate of increase, its unlikely to reach the 1987 level for another three years.
(Which would mean that after three terms of a Labour government, we'd be back where we started in 1987, before the revolution turned really toxic. Which tells us something both about how much damage was done in the 90's, and how much (or rather, little) Labour is committed to undoing that damage).
At the moment, the government is trying to raise wages. It is also trying to raise productivity. One way of doing both would be to seriously hike the minimum wage, in a couple of steps, to $12 / hour. This would both put increased pressure on wages at the bottom of the market, as employees sought to retain their existing relativities with the minimum, and it would provide employers with a greater incentive to invest in improving productivity rather than simply hiring another warm body. And at a time when there aren't really a lot of new warm bodies to go around, the latter especially seems like a good move.