It was on the daily email from the DizNewsPlus email list, but they didn't give a source.
Okay, I found a second mention of it at laughingplace.com, but still know mention of source.
http://www.laughingplace.com/News-ID10026240.asp
When trying to find the news on screamscape.com I also found this:
(4/3/07) The unthinkable has happened it seems because in the latest rehab to Epcots Electric Umbrella eatery (in Future World) they installed a pair of self service beverage stations allowing theme park guests, for the first time in a Disney World park, to refill their drinks as often as they want just as you do in about every fast food restaurant these days outside a theme park. What does this mean for the future of Walt Disney World? Im going to make a guess that this is the big experiment to see how it will impact not only the rest of the park, but also the profit margin of the Electric Umbrella itself.
Its no secret that it costs any given theme park only a few pennies for every soda they sell, so they are a huge profit maker. However, Disney can also save a bundle by not having to staff as many people to fill those very same drinks by allowing the guests to do it themselves in exchange for allowing free refills that really dont cost much extra. This is definitely the place to keep your eyes on over the following weeks.