I went to an iPad camp this weeekend and had a great time. It was Saturday and Sunday, 10am-7pm. I was amazed at how much we were able to get accomplished. We had a product position statement, goals, scenarios, flows and wires by 3pm on Saturday. These are all things that are typically eliminated from small projects because they take too long. Even though they were not done to an optimal level, it definitely helped us get on the same page, make decisions and keep the product focused. This cram sessions approach could apply well even in corporate environments.