UPK: Wonkbook Rounds Up Obama's "Holy Smokes!" Preschool Proposal

Want to know everything about the preschool proposal -- including whether any of it stands a chance of being implemented and doing any good?  Today's Wonkbook has a great roundup of stories about the numbers, the reactions ("Holy smokes!" from James Heckman), the evolution of views over time.  My favorite writeup so far, however, is this Forbes article (via Jezebel) about the non-altruistic arguments for universal preschool:  the needs of single mothers and working couples, as well as the economic benefits.