This twitter is undergoing “planned maintenance”

Proving that despite their inability to cope with massive demand, Twitter still has a sense of humor (and following up from their page-not-found error), here’s twitter’s 500 (server error) page which has been available for all to see for much of the last 24 hours:

Twitter “planned maintenance”

Not a great advert for Ruby on Rails (on which the site is built) but convincing evidence that the site is indeed incredibly popular.