NoiseDiary.com has given away it's first FREE sub-domain! And although chantal hasn't changed anything yet, it is still a step in the right direction.
Remember, you could host anything from another blog (Argh!), or your own forum board or eCommerce site. The possibilities are endless with 1000's of extensions available for both packages.
(And if Joomla or Drupal isn't what you want, just let me know. We can also install phpBB if you like)