OpenSim (OS) and Second Life (SL) technology leave a lot to be desired. If they are ever going to take off, there needs to be a serious redesign. However, writing an entire virtual world system from scratch is a huge job, especially for a tiny team. So we will use the existing OS and SL open source software as crutches, using them to run at least one virtual world, while we slowly replace bits and pieces as we get to them. In this way, we can have our cake and eat it to. Not having to slave away for years just to get to the point where we have a single avatar standing still in an empty world. http://www.infinitegrid.org/drupal/content/OMG discusses our plans. The directory structure in here more or less follows the names of those documents. It's all very experimental at the moment, and currently does nothing useful.