This was a work in progress, but now we are using the Drupal Bootstrap theme, which is being actively maintained. It's great.
Alternatively you could use Stanford's Open Framework theme which is also based on Bootstrap. But, we haven't had as much luck with it.
Did you read the message above?
- git clone git://github.com/scimusmn/drupal_twitter_bootstrap.git sites/all/themes/dtb
- ./install.sh
The install script uses git to pull the appropriate version of the Twitter Bootstrap system as a submodule of this repo.