atom_feed do |feed|
  feed.title "#{@user.name} (@#{@user.screen_name})"
  feed.updated @tweets.first.try(:created_at) || Time.at(0)

  @tweets.each do |tweet|
    feed.entry tweet, :url => tweet.uri, :updated => tweet.created_at do |entry|
      entry.title tweet.created_at.rfc2822
      entry.content auto_link(tweet.text), :type => "html"
      entry.author do |author|
        author.name tweet.user.screen_name
      end
    end
  end
end