Ah, I see the misunderstanding. I don't mean that it stalls framework development, I mean it stalls projects. If I'm starting a new project today for a mobile app, do I go with jQTouch today? Or do I wait and see how jQuery Mobile goes?
This happens all the time in the industry. Familiarity breeds contempt, so it's easy to make a list of problems with jQTouch. But whatever is announced but not shipping has no bugs. It has no performance trade-offs. It is effortlessly compatible with mobile devices back to the Radio Telephones of the 1970s. And its programming model is intuitive, flexible, and powerful with no learning curve.
How can you resist waiting? What project is so urgent that you take a chance targeting jQTouch when it will obviously be made extinct by jQUery Mobile? So an announcement has a chilling effect on framework use, that's what I meant.
Alas, no way around it, you can't drum up support for it without perturbing the environment a little.