Good point, but you'll still benefit from using async script loading if you have...

jasondavies on Oct 8, 2010 | parent | context | favorite | on: Tell HN: Your social widgets are losing you visito...

Good point, but you'll still benefit from using async script loading if you have multiple third-party scripts loading at the end of your page. If the Twitter script is included before the others, and it lags, it will hold them up too.