> no big pieces of google make it out, unless they are dead internally
Um, I know nothing about Google's internal goings on, but I would be surprised if a majority of V8, NaCl, Chromium, GWT, WebM, Go, Closure Tools and Android are dead internally.
Most of those sound like dead internally, i.e either they have nothing to do with their money making scheme (Ads), or they are to be used externally to assist that purpose, not internally.
With Go being of marginal use inside Google (C++, Java, Python win the day), the only exceptions I see in the list is Closure Tools and GWT.
http://code.google.com/opensource/projects.html