Just catching up on this thread, so I'm a little late to the party, but wanted to chime in.
In general I hope that when our community is discussing additions to the SDK, we're talking about solid, lightweight, core features--like what (I think) Peter's suggesting. Signals performs quite well as a standalone library. The costs of adding it "officially" (baked-in code, API maintenance, etc.) seem high relative to the incremental benefit over using it as a standalone library. I hope our focus is to support developers by giving them a solid foundation. To do that I think we need to stay lean, and deliver highly extensible enhancements. sD
