Sitting here watching Adrian Wible run the eXtreme Programming Lego game ~ 40 people have been split into 6 groups, each with a number of cards describing customer wishes and a pile of legos Pictures at: http://geekswithblogs.net/dnoderer/gallery/8256.aspx Video : _ Process shortened for the_1.5 hr meeting The goal is three iterations Step 1: Estimation: 10 min - Relative difficulty Step 2: Prioritization: 5 min