This sounds like a real gimmick to me. What will they think of next? A bottle-shaped can is unusual.
I've seen some of the other Pepsi flavors come out in aluminum bottle shapes. It's just more marketing.
Meanwhile I'm impressed that Pepsi took the lead in producing Pepsi Next with 60-40 Stevia - Sugar ratio, as well as some other pseudo fruit-flavored softdrinks. And I've yet to see Sprite Green in other than photographs of those bottlecans.