This week IronRuby got released. First look on it can be found at John's blog.

This was a incredile work by the Ruby team and this came out really fast. I tried out and the result was very good. Found many reference to it on the web.
Scott followed up with a post on his blog, with a good WPF sample as well. On the roadmap for open source, Jason gives insite into that on his blog.

People have really started using it and there has been good feedback to it so far. There were some complains also and then some fast responses to them.
For of one of such by Antonio, the patch also was released given by Fepy. Open source really would go a long way here.