Not to miss the iPhone BI wave, we, well Hiro from our development team has been beavering away in a darkened room and has emerged with ... Publisher on iPhone. Not being an owner, much to my son's chagrin I have not been able to test it out locally but you can check out the recording of what he has come up with.
Right now you can login to the Publisher server and navigate the report folders to view report outputs - its a start. We are discussing the enhancements, etc we want - how much more would a user on the road want? Do you want to be able to run reports? Schedule them?
Maybe we'll have a Publisher app on the iPhone application store before too long.
