My open source contributions have dropped off dramatically since I started working at Toronto web development firm, Instaclick. But it's not my work hours to blame ... it's my crazy commute. (BTW we are hiring. Check out the career opportunities page.)
This week, I'll be tinkering with JavaScriptMVC while on the train. (I really liked the look of the KnockoutJS site, and the interactive tutorial was pure "wow", so I may experiment with that later.)