No. However considering I met him on Twitter, and I was already online at the moment, it was
convenient. Probably the most overt thing people are missing about Twitter. I know that he checks it regularly, which is less than I can say about his skills at answering a phone call.
It's not a matter of "sense". If I could recount the number of times that people told me Facebook was irrelevant because "email" existed and I could use it for the same reason I use Facebook (to stay in contact with people), we'd be here all day. The fact is, I've connected with lots of people in my industry and area with Twitter, and lots of them if not all have become valuable assets in what I do.
I wouldn't be so crass to quickly dismiss it as THE method of communicating. The marketplace wont let that happen, and social dynamics wont let that happen; and in my opinion I think that is another crucial thing people fail to realize when stacking Twitter up against traditional communication: the social dynamics of how useful it can be.
But again, there's no archetype for how you use this type of service, or any service. It just so happened I was online at the moment, I knew he was online (by virtue of the fact that he had posted a tweet not even 10 minutes earlier) so I alerted him to where I was.
It's really that simple.