Contents of the file apn_sender's generator puts in script/apn_sender (for those on Rails 3, where the generator isn't working yet)

apn_sender

#!/usr/bin/env ruby

# Daemons sets pwd to /, so we have to explicitly set RAILS_ROOT
RAILS_ROOT = File.expand_path(File.join(File.dirname(__FILE__), '..'))

require 'rubygems'
require 'apn'
require 'apn/sender_daemon'

APN::SenderDaemon.new(ARGV).daemonize

apn_sender's generator isn't yet Rails 3 compatible. In the meantime, follow these steps:

1. Create a new file: script/apn_sender
2. Paste in the contents of this gist
3. Profit?

Thanks for this kdonovan!
I've been using the rake task with mixed success i'll try this out :)

before require we need add on more line

require File.expand_path('../../config/application', FILE)
or else it says no such file to load -- apn (LoadError)

what is the format for apn_sender ? apn_sender.rb ? or other ?