Success in pre (pre) school

Missed this when it came out last week.
Apropos of the early education post from earlier this week, this study, looking at the effect early childhood ed has on income-based education gaps, is really encouraging. (The study is actually a few years old, but it appears to have only been published at the end of this past year.) To wit:

Projecting IHDP impacts to the U.S. population’s IQ and achievement trajectories suggests that such a program offered to low-income children would essentially eliminate the income-based gap at age three and between a third and three-quarters of the age five and age eight gaps.

More here from ThinkProgress.
So, can we get someone to put some money behind this, rather than, say, snazzy new testing programs? Please?