Yahoo! News - 7-Eleven Introduces Calorie-Free Slurpee : "Slurpees have been a steady seller in 7-Eleven stores since the 1960s, but many devotees who first tasted the slushy treat as kids are grown up and worried about their waistlines. The convenience-store company is trying to win those customers back with its first calorie-free Slurpee."

They're hoping that the Diet Pepsi Slurpee will increase sales to women, dieters, and diabetics.

Bizarre Slurpee factoid:

Fiery Phoenix is one of Slurpee's weakest markets, Ryckevic said, while two of the best are Detroit and Manitoba, Canada. The average August high temperature in Manitoba is 59 degrees.