John Lam, Dino Viehland and I conducted a session on building languages on top of the Dynamic Language Runtime, at the three day DLR Compiler Dev Labs, that concluded recently. John spoke about IronRuby and how it's being implemented. Dino talked about some of the DLR concepts like dynamic sites. I covered Managed JScript and the challenges we faced implementing it on the DLR. The deck for this talk has been uploaded by John, here. Vince Bonfanti was there and he has posted his thoughts and take aways. He seems to have made great progress in getting BlueDragon implemented on the DLR.