I just took a real close look at the new diet pepsi 2 liter bottle design. (January 2009) For a few weeks I was confused.
It looks at first glance to say "pepsi 0 (zero)". Zero products, in my opinion, are to taste like they have real sugar in them. Unfortunately, I have avoided buying this new labeled bottle for that fact. To me it's very confusing to what I am buying.
(Zero vs. Die) I am more likely to buy diet coke that has a more familiar history to me in the labeling, for that fact. I hate the marketing confusion.
Stick with what works. You don't always have to remarket yourself.