I'm making this comment on a train home so I apologize for lack of looking at CommYou but PLEASE make sure there is a mobile friendly interface. I'm not asking for a separate app but perhaps a basic XHTML plus CSS interface it gets shunted to when it detects a mobile mime type.

Too many people thought web accessibility was about older browsers and didn't think about scalable web guis for the multitude of mobile devices and futuristic interfaces.
So frustrating - break from the pack! ;)