The latest version from source supports OpenSocial 1.0. I think the
2.0 tree supports 0.9. To get 1.1 specification and the development
2.0 in-process spec features you'll have to build and apply the
various patches underway.
If you are a .Net shop (or mono) you can use project Negroni (http://
code.google.com/p/negroni/). This project is not a full
implementation of the spec as it only includes the server-side gadget
parser and template engine. It does not yet include the client-side
javascript container. You will also have to implement your own
compliant API stack to tie into as the APIs are fairly environment-
specific.
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clc