Pineapple?
In the latest wave of flavored sodas, we now have Tropical Sprite Remix from the Coca-Cola Company. While I think the packaging stinks, the actually flavor is a nice variation on regular Sprite.

It has an ambiguous hint of what I believe to be Pineapple flavoring. Otherwise, it's fairly similar to the original product. But, it's a refreshing little variation that's just in time for the summer. (Imagine that it'd be pretty slick with some crushed ice and Parrot Bay Coconut Rum!)

On the web: SpriteRemix.com
related articles: Mountian Dew LiveWire