In the center of the WWDC madness, Taptic Toys was showing off a telepresence robot based around the iPad and Facetime. So, instead of going to the office, you can send your robot in your place. They are using a Mi-Fi device to get around Facetime's Wi-Fi requirement. Seems just to be a prototype, so they are gauging interest for an actual device.
In the market for an iPhone? Here's a breakdown of all the currently shipping iPhones from Apple.