The new WFC3/IR camera aboard HST enables us to survey the sky in the near-IR data 40x more efficiently than ever before -- permitting us to make enormous strides in our searches for z>=7 galaxies. Already deep observations exist over >~52 arcmin**2 in the HUDF09+ERS fields. With these data, we have been able to select 65+ z~7 galaxies, 30+ z~8 galaxies, and even some candidates at z~9-10 -- adding substantially to the 20-30 z~7 galaxy candidates known before WFC3. In this presentation, I summarize some of our early results, including the evolution of the UV LF from z~9 to z~4, the spectral properties of z~7-8 galaxies, and the stellar mass / SFR in z~7-8 galaxies. I will discuss the likely implications of these results for the reionization of the universe.