I think these have been on-line for a number of years now.   Bill Gates first purchased them and created Project Tuva.  <a href="http:&#x2F;&#x2F;research.microsoft.com&#x2F;apps&#x2F;tools&#x2F;tuva&#x2F;" rel="nofollow">http:&#x2F;&#x2F;research.microsoft.com&#x2F;apps&#x2F;tools&#x2F;tuva&#x2F;</a>