gistfile1.rb

# Tweets the currently playing song from iTunes
# Requirements:
# Grackle: http://github.com/hayesdavis/grackle/tree/master
# rb-itunes: http://rubyforge.org/projects/rb-itunes/

require 'rubygems'
require 'rb-itunes'
require 'grackle'

@@delay = 1 # in seconds
@@twitter_username = 'YOUR_TWITTER_USERNAME'
@@twitter_password = 'YOUR_TWITTER_PASWORD'

@@current_track = ''
@@itunes = ItunesApp.new
@@twitter_client = Grackle::Client.new(:auth=>{:type=>:basic,:username=>@@twitter_username,:password=>@@twitter_password})

def get_current_track
    @@itunes.current_track.name + ' - ' + @@itunes.current_track.artist 
end

while true
    sleep @@delay
    current_track = get_current_track
    if current_track != '' && current_track != @@current_track
	@@current_track = current_track
	puts current_track
	@@twitter_client.statuses.update! :status => '"' + current_track + '" ♫'
    end
end