It is not about being cool. Its about being productive. I've been using Unix and unix-like OS since the mid-1980s. my fingers know how to use them. I don't want to change to something that is not clearly better. Its about making me productive.

Your boss is an idiot. Programming requires concentration. Sure, its a bit antisocial to be zoned out into music and not listening to the latest gossip about Tiger, but tough. To get into complex code, you need to think about it. Headphones in cubieville are requied for large percentages of the developers I've known. I've been in this racket for 40 years, and worked at companes with as many as 6000 developers. For myself, I only use headphones when I must, I prefer working from 10PM until 4AM when the house is silent and I can work without any interuptions.