Apparently so, and while it was having issues with content not updating with the change to their new site, it looks like they released a new version today that apparently fixes the problem according to the changelog.
For the rest of us that don’t have (and will probably never have) an iPhone, m.ktvz.com works fine for me. And don’t forget you can get this site and BendBlogs on their respective mobile sites (and those URLs apparently work well on an iPhone — but again, can’t test, so I don’t know).