The project is a little later than planned because we added extra features to make the site more polished and easier to maintain on the back-end.
We will be releasing to alpha on Monday and we hope to have it available on beta within a month. At the same time next week you will see documentation here (on the forum) showing the new features and how to use them.
When it is on alpha, we'd be happy to set you up with a demo store so you can try it out.
Furthermore, we can also offer you a redesign of your site on the responsive templates. This will be charged at a day's worth of design work. While it is by no means necessary, it would give you an opportunity to offer your shoppers a fresh new design, tailored to your brand. We can send you more information if you like, or add you to a list of interested customers.