Steve
Mostly Harmless
I've been at NAB this week, and one thing I saw was an iPad/iPhone set up for teleprompter. Very cool. Not cool enough to get an iPad personally, but for a field prompter, it's a pretty cool solution. You operate the iPad prompter with the iPhone.
http://www.bodelin.com/proprompter/
http://www.bodelin.com/proprompter/