By default Drupal gets installed with only one default language - English - and all additional languages need to be added afterwards, followed by downloading and importing all relevant interface translations. But why not to make our multilingual lives just a little bit easier?
Although Drupal 7+ runs smoothly on PHP 5.3, Drupal 6 still feels much better with PHP 5.2. Therefore developing for both D7 and D6 at the same time becomes much less painful when running both versions of PHP in parallel. How this can be achieved on Ubuntu 12.04?