I know this is the 'Child Themes' section but what I have to offer is a parent theme for theme developers and bloggers. Responsive and built on Hybrid Core, with minimal styling.
While it should look pleasant enough for a blog site, I've actually made it for my own theme-developing needs and therefore it should be useful for other fellow developers. If you've ever used any of Justin's parent themes for building a custom site, you should be at home with Origin - I used Prototype as a model and did my best to follow the Hybrid Core coding standards. And if you even recognize his personal coding style, that's probably because I formed my own style here :) .
I cannot promise the same about the CSS though - it may look quite different, if we don't count the fact that I used Prototype as a base to make sure all WordPress elements are styled.
Theme Settings - again, the inbuilt Hybrid Core feature is used, according to the theme settings tutorial. Plus a color picker and image upload settings. I've made the last two following the guidelines and ideas in the book "Professional Plugin Development", so they should be good :) .
Well that is all for now. I'd be especially happy if other theme developers find the theme (or parts of it) useful and give me their feedback.
PS: This is my first fully GPL-licensed theme and I'm not sure if I've left credit everywhere it's needed. Please let me know if you spot something wrong.