The 16GB will be $399 retail. I forgot what the 8GB is going to be.
Edit: There are two models of the iPhone, one with 8 gigabytes' storage, the other with 16 gigabytes. Pricing will be dramatically lower for the 8-gigabyte phone, at $199, down from $399. The 16-gigabyte iPhone will retail for $399, down from $499.
...yikes. That seems like a rather important thing to include in Mr. Jobs' presentation, though I can see why he has left it out. Hopefully the standard upgrade eligibility applies, and everyone can upgrade not just previous iPhone owners. Still, I was going on the assumption this was a retail price. So much for that.