Jason Zander, GM of Visual Studio gave an interview on the reg where he talks about OSS and VS10. Putting aside any license issues what I am keen to learn about is the kinds of existing projects that you would want to see embrace this from the current .NET OSS offerings and the kinds of features\projects that you would want to see from this. Would you want the same kind of support that IBM have created for Eclipse with the same kind of community projects. Loads of great things that could spawn from this.
The VS10 UI is taking shape, it still looks very much like the UI in the PDC build but with some tweaks.
Multi-screen support, the screen shot does not show how it works in action but the things you want\need in this you should start shouting about.
Editor changes, expand, collapse, works for you or not, let me know.
Extensions, MEF powered, the new manager shows how rich this eco system is going to get.
Sorry for the long delay in posts, first time I have ever missed a month but crazy, crazy busy.