Also curious what it looked like. I was at a Courtyard in NYC several weeks ago, and they had their computer set up under the check in counter, which had a glass top. I could kind of peer over the counter and look down - while I couldn't read the characters from my angle, it looked like that the particular FDA was using something that looked more like a terminal system.

A friend sent me this picture from the Salesforce Conference/Convention a couple months ago, where apparently they had a booth talking about ways in which Salesforce helps creates systems for Marriott, including a screen displaying the following. (I believe it's only a mockup or demo of something similar to what an FDA might see - it's not a screenshot from an active working system). I'd be curious to know if this is similar to what's actually being used (or has been used) at Marriott properties!