Just a brief note on the lack of nominations so far. Well, perhaps not exactly brief, but I'll attempt to avoid digressing.
I was one of the people that handled Math Overflow's transition to the Stack Exchange 2.0 platform. Any time that we introduce a major change, especially one that effects folks at the account level, we like to make sure that no one was left disenfranchised. To help test for this, I patiently waited for the folks that appeared on the first few pages here at the time to return to the site and have their accounts fixed.
A bit of nail biting went on as a Friday passed, and 1/3 of the people on that list still hadn't returned. To my delight, when Saturday came, almost everyone was quickly accounted for.
As Grace noted in comments, we've had entire nomination phases take place over the course of a weekend. While we'd prefer to not cut it so close, there's not much to worry about right now. We are, however, supporting the moderation team in their efforts to bring more attention to the election process, and watching carefully.
I strongly suspect that we'll see the most activity toward the middle to end of the week, just based on my observations of activity when we migrated the site to the SE 2.0 platform.