I'm highly skeptical that this tool will be able to deal with anything other than the most basic of pages.
What happens if your site already has a mobile version? I assume this Cinch tool would have to proxy your site to deliver their mobile rendition - thus keeping the consumer from ever landing on the site and triggering whatever native behaviour the developer intended for mobile browsers.
My guess is that you wouldn't use the tool if you had a mobile version to your site. I wasn't on this team, but my understanding is that it's not intended for browsing per se. The idea is that a huge number of people are opening links from emails and other messages on mobile devices. Bounce rates are much higher when this link is directed to a full site rather than a "mobile-friendly" site. If you can capture their attention a bit longer with the "cinch'd" site, there is a much higher chance they will return later. I believe a feature to purchase directly from the cinch'd site is in the works.
The bottom line is that these guys built this from scratch in less than 54 hours -- pretty amazing to me.
What happens if your site already has a mobile version? I assume this Cinch tool would have to proxy your site to deliver their mobile rendition - thus keeping the consumer from ever landing on the site and triggering whatever native behaviour the developer intended for mobile browsers.