Push TFL tube status updates to your iPhone using prowly

prowly_tub_status_update.rb

require 'rubygems'
require 'prowly'

require 'rexml/document'
require 'net/http'
include REXML

@location = 'http://cloud.tfl.gov.uk/TrackerNet/LineStatus'
@file = Net::HTTP.get_response(URI.parse(@location))    
@xml = REXML::Document.new(@file.body)
@output = ""
@xml.elements.each("ArrayOfLineStatus/LineStatus") do |element|
  @output = @output + "#{element[3].attribute("Name")} - #{element[5].attribute("Description")}\n"
end


Prowly.notify do |n|
  n.apikey = "???????????????????????????????"
  n.priority = Prowly::Notification::Priority::MODERATE
  n.application = "TFL Update"
  n.event = "Alert"
  n.description = @output
end