The document discusses using Second Life for application prototyping and testing. It describes how a company called ItOnlyTakes1 developed visualization tools and moved from 2D and 3D versions to using Second Life to prototype and test applications. The document outlines the initial issues with the move to Second Life, both the good and bad unexpected results, how preparation was optimized, and the positive results of using Second Life. It is intended for educators, programmers and product developers inside and outside of Second Life.