While previous rumors had Apple announcing iPhone video tomorrow at WWDC 2009, Daring Fireball's John Gruber has just put up his predictions and, at least in code name form, they're going with "iPhone 3GS" -- though they don't offer what the "S" stands for...

In the past, Daring Fireball's predictions have at times seemed closer akin to inside information, so it's worth paying attention to. In terms of specs, Gruber is sticking with what he previously predicted:

significantly faster processors, twice the RAM, and twice the storage. I expected prices to remain the same as the current lineup: $199/299 for 16/32 GB, respectively. The video camera is going to be a major selling point. [...] battery life: 15-20 percent longer than the iPhone 3G.

As to the oft rumored iPhone nano/mini, while he does see Apple eventually doing a distinct iPhone nano model, much like the iPod nano, for now:

I would wager heavily on [the iPhone 3G 8GB becoming the $99 iPhone] — that the new iPhone 3GS models will not replace the 3G, but rather assume the flagship position while the year-old 3G slides down to the second spot in the product lineup.

On the subject of the equally oft rumored iTablet, Gruber thinks it's real, but not yet ready to be announced.

In less than a day, we'll all know for sure!