UPDATE
The website returned back into service quickly after this posting.  The site may have been down for maintentance or due to a glitch.
There’s no word from Anakata, but from visiting the official Pirate Bay channel on IRC:
* Now talking on #thepiratebay.org
* Topic for #thepiratebay.org is: Site is down. We’re working on it.
* Topic for #thepiratebay.org set by neotic!neotic@illvilja.org at Wed Jun 6 12:03:19 2007
No word as to why the site has gone down, yet. There were no comments other than the terse one line topic.