Here is the story behind Eton Mess. The recipe uses ready made meringues and I'm not sure I'd trust a recipe from Wikipedia.
If you want to do the meringues yourself here is Delia's recipe for Eton Mess. She's an excellent cook and I reckon this would be fabulous.
The one I had replaced the strawberries of summer with bananas which are more readily available at this time of year. I reckon you can use just about any fruit. It also had some very fine lime zest which added an interesting tang to the sweetness of the meringue.