Can Sencha consider setting up a web page to do custom builds of ExtJS (and maybe Touch)? You know the kind of thing: check boxes for the components you need, then click 'Generate' and it builds you a custom minified JS file you can include in your project. jQuery UI has something like this.
I know the Cmd toolset can do this, but it has lots of dependencies. I personally don't have Java, Ruby, Compass etc on my box. I spent an hour setting it all up, and then decided it would be easier to take ext-all.js and start chopping