Nice stuff!
Every time i'm in an airplane, i resolve to get noise-cancelling phones. My trusty studio Sonys are no match for a jet engine!
Why would people be annoyed by ipod earbuds, though? Unless you got em cranked to 11, no one will hear your tunes (although if you're playing UW, maybe they
should
)
edit: oops, i assumed you had an ipod. Maybe your mp3 player has a speaker?!