In their July, 2010, email newsletter, OakTree Software included a brief first look at their much rumored iPhone/iPad app. Also mentioned is an approximate release date—Fall, 2010. Here's the actual wording:
Accordance on the iPhone/iPad
Progress on the Accordance app for the iPhone/iPad is dramatic. We expect to release it this Fall. It will run your Accordance modules, and offer most Accordance search functions. Convenience, speed, and privacy are maximized; there is no need to be on-line to use it. Once you download your modules to your mobile device you can search and read your modules and edit your notes off-line. In the future we plan to add even more features.