1 down, ten billion to go.
from a 707 phone number, Friday, April 18, 2:45 PM

This could be referring to any number of things. One exam down, ten billion to go? One CD burned, ten billion to go? One child home from school, ten billion to go? My writerly feedback is that I like the phrasing for I admire hyperbole, yet I would urge some clarification.