Not sure if this is what he is aluding to but...
CO raised most awards in 2008 by a flat 20% and changed rules to read that any change to program (incl. discontinue) can be done with 30 day notice.
Also removed on line booking bonus and a few other perks.
NW is rumored to be good for 2008 still with no major devals rumor'ed
DL has some deval with some changes to awards and removed on line booking/check in bonus
No idea on UA/AA/US but nothing from US is good these days.