Drupal Apps: the new way of building Drupal websites
"First there were modules, then there were Features, and now there are Apps". That's the first sentence of the project description of the Drupal Apps module, and it's the new hotness in the Drupal ecosystem. Some new distributions - like the newly released panopoly- are already using it. But instead of me explaining what it is, just watch this 4 minute video by LevelTenInteractive which will give you a pretty good picture!