Say this today in the store, apparently they've co branded w/ Halo 3 (yes please) and are marketing something called Game Fuel.

They had my consumer heart at Halo, but apparently it's not just a mere marketing ploy alone. There's a new taste, cherry citrus....and there's more caffeine.

48mg vs 36mg for normal Mountain Dew. That's a 25% increase in caffeine...and it doesn't taste to bad. Kinda like livewire with some grenadine mixed in. Slightly cough syrupy-ish though.