Hi,
would love to do this for you. However I do not suggest to build a native OS X App, but use Google Apps for business. This way you are platform independent, nothing to install, you can see what they are doing and we can export a live webpage that you can then project to your monitors.
Expect the initial version to be complete in about a day or two. Then we can improve from there....
Let me know if you are interested.
Cheers,
Roland
--
Founder / Principal Agile-ist @ The Agile PMO