DrupalCon San Francisco was an amazing DrupalCon - about 3000 attendees!!! I had really great luck to be there at all, we passed the volcano ash by one day! Sadly lots of European Drupalistas had not so much luck :( I really enjoyed the conference, in particular the core developer summit & the code sprints. Gladly the lightning talk I submitted for the core developer summit was selected, so I gave a short talk about Drupal's data APIs - Why inhomogeneous APIs suck - clearly entities are the way to go! Also Alex Bronstein, (effulgentsia) one of the maintainers of the Form API, gave a great "D7 Advanced Form API Session"- due to scheduling difficulties it sadly had to take place in a BoF room.