I think Greenberg was referring to what became a big story on the blogs about some companies like Delta indicating they will be switching the redemption scenarios from points from area to area to points per dollar cost of the desired ticket. For many people, that would effectively mean the end of traveling in the front of the plane.
The good news is I have loads of miles. The bad news is the addiction of accumulation has outpaced my ability to redeem them so I'm pretty much stuck at the mercy of the airlines. Still, as others have said, between FT, MP and the bloggers, I'm sure they won't go to waste.