It's pretty much the eve of Apple's big WWDC press conference, and Daring Fireball's John Gruber is back at the eleventh hour to chime in some more on his previous (and perhaps well-informed) iPhone predictions. He sticks to his previous wagers -- twice the CPU speed, twice the RAM, a heavy emphasis on a new video camera (no word on if there's an additional front-facing one), and $199 / $299 for the 16GB and 32GB m