Our mainstream required-for-majors theory course, CS 121 (the "here's Turing machines and undecidability and NP-completeness" course), has an enrollment of just over 150, the largest it's ever been. Given that CS 125 was supposed to draw some students from 121, that's even more amazing.
And the standard CS introductory course, CS 50, has over 800 undergraduates (and over 850 total) signed up, making it now the largest class at Harvard. This was so noteworthy that the Crimson had an article this morning about it. As usual, you can find a great quote from Harry Lewis:
“Harvard students are smart people,” said Harry R. Lewis ’68, former dean of the College and current director of undergraduate studies for Computer Science. “They have figured out that in pretty much every area of study, computational methods and computational thinking are going to be important to the future.”So the growth continues, at least for another year.