Charming in it's simplicity.
Amusing concept you have here. Your flash is probably as successful as it is because a lot of people can relate to it, and that's pretty difficult to achieve for a lot of artists. I like how you voiced it, and the animation complimented it well despite it's simplicity. The facial expressions were kind of "samey", but they did their job.
This is probably one of the more curious front page animations I've seen lately. There's no violence, no ridiculous profanity, no sex; just some guy with a cold becoming mildly annoyed by his friend on the telephone. It's so simple it would be a real shame to do much more with it.
You won't be winning any art or animation awards, but you've struck a cord with a lot of people. Congratulations on that. It isn't easy to do by any means.
Enjoy the front page, sir.