Guys, not that long ago, it was unprofessional for an office worker not to wear either a dress or a suit and tie to the office. It was unprofessional not to be to work at exactly the starting time.
Now, I wear shorts and a tee shirt to work and start whenvever I feel like it. (As long as all the work gets done.) Times change and twittering is mainstream now. It's simply a communication tool and is actually more efficient than press releases, imo. (It's also much less expensive.)
jmo