If you are going to the Epcot Flower and Garden Festival or if you are just curious about what is going on there is a new mobile site http://m.epcotinbloom.com which has been released for the occasion.
There is an event guide
Google Map with pins to let you know where everything is happening:
A Topiary hunt (which in my opinion is very lack luster and Disney have missed a trick here) which is not really a game but a list of the Topiaries when clicked they reveal a picture of the Topiary and a list of what they are made up from.
And lastly there is an audio guide which I think is the saving grace for this web based app:
As this is a web app there is no access restriction for us Brits so if you want to find out more about the Festival give it a look http://m.epcotinbloom.com