Roombas: I really don't find that the least bit strange. Just think about how important their cars and bikes are to men, and then consider the love and care they put into their garages for the best layout of their tools. I personally have named all my computers (more so out of a want to describe them as more than "my desktop" or "my laptop"), but it's perfectly natural in my mind. The roombas are just taking up the niche of pet rather than appliance. I mean, when was the last time you petted your toaster and didn't get bit?
Asteroid: As cool as it is that the scientific community has 'decided' it was an asteroid collision, if it wasn't an asteroid this could prevent furthering the discovery of the true cause by default, example: "What do you mean the dinosaurs were killed by the eruption of a super volcano? Don't you know an asteroid did it?" Poor example, I know, but I'm trying to comment quickly.
Hella: Pardon the phrasing, but it seems appropriate, Hell yeah! It'll be nice to have a unit of measure that will actually reflect the human's reaction to the sheer amount of something, rather than eventually growing use to it. That will be a nice change. Also, I say we petition to change 'yotta' into 'yoda.' I think we could pull that off. (Imagine, yoda-Newtons... a yoda amount of force, come on that's cool)
Earthquake: Just when you don't want to give the 2012 crowd more ammunition, they announce something like this. While it is cool, I guarantee this'll become an arguing point in favor of 'the world ends in 2012.'
And btw, I LOVE this section. It really goes to my need for strange and typically useless information.