Aslak and Jon paired on a presentation at JavaPolis in 2003. ThoughtWorks paid for the excursion and even rented a booth for them to hang out at.
Contrary to the prevailing opinion in advance of the trip, they were sober, polished and popularly recieved in the presentation itself.
PicoContainer - Inversion of Control made easy (pdf)
Also available in Japanese: PicoContainer - Inversion of Control made easy (PowerPoint)