Pyramid 1.0 final will be out before PyCon US (~ 2 months from now).
However, it bears saying that, so far, no alpha release of Pyramid has been bw incompat with the last in any way. As a result, I wouldn't be scared off much by "alpha" in its version designator, at least as an evaluator. The code in Pyramid has existed for almost 2 years now. Every release has 100% statement coverage via unit tests. An alpha of Pyramid is arguably much more stable than many "final" releases of other web frameworks.
However, it bears saying that, so far, no alpha release of Pyramid has been bw incompat with the last in any way. As a result, I wouldn't be scared off much by "alpha" in its version designator, at least as an evaluator. The code in Pyramid has existed for almost 2 years now. Every release has 100% statement coverage via unit tests. An alpha of Pyramid is arguably much more stable than many "final" releases of other web frameworks.