What I'm doing right now

I just read a David Pogue story in the NYT about Twitter—this web site where you're supposed to tell everyone you know what you are doing right now. I've also seen this in Facebook and probably it's part of Myspace and all that other internet social Web 2.0 gobily-gook. What I don't get is what people care about what I'm doing right now. "Surfing the internet" "looking for hotels in San Francisco" "wasting time" "updating my Twitter status." In fact, why doesn't everyone's twitter status say "updating my twitter status"? Isn't that really what they're doing right now. I don't know, maybe I don't have enough time or think too highly of what I'm doing right now, but it seems like everyone is so busy with what they are doing right now to care about what I'm doing right now. Right now I will to quit typing this blog post about what I'm doing right now. That's what I'm doing right now. Now.