Macworld has the story, on the new Airport Express, which was not mentioned in the WWDC Keynote. It basically looks like a white Apple TV now, but now sports a WAN and a LAN connector, and the standard USB and analog/optical audio jack, but it also has the best features of the AirPort Extreme, which is dual band 802.11n support, which will allow macs and iPads to connect over a 5Ghz network, and your iPhone over a 2.4 Ghz network.
And it remains priced for $99 and is available now from Apple’s Web Store.