Last weekend, ten Oxfordshire Drupalers did a learn sprint at the Torchbox offices. I’ve written a more complete discussion over on the work blog.
We had a great time: it was a gloriously sunny day, which helped, as we were able to eat lunch (sponsored by Torchbox) on the lawns next to the office. But what was best is that the day was so productive: we all ended up learning together, and by the end of it we could all contribute to Drupal on the issue queues.