The Oslo technology is revolutionary. There I said it. I will dedicate the next four weeks dissecting the capabilities of the M language and the MGrammar languge for DSL buildling. I have been reading through the early language specification furiously and man, this is a real deal. For now, check out the marketing kids' word at http://www.modelsremixed.com/. Download the SDK (a tiny 15MB download) at http://code.msdn.microsoft.com/oslo