Battle of the artificial sweeteners

Starting on Monday, a jury is set to consider whether the Splenda advertising slogan "made from sugar, so it tastes like sugar" is false advertising.  Merisant, the manufacturer of artificial sweetener Equal, has sued McNeil Nutritionals, the maker of market-leader Splenda, in federal court in Philadelphia, claiming violations of the federal Lanham Act and Pennsylvania state law.  Whether the slogan is false will involve issues of both marketing and chemistry:  Is Splenda really made from sugar?  And does the slogan falsely imply that the product is "natural"?

See the New York Times description of the case here, and law blog coverage here and here.