We learned about iOS 4.3 earlier this morning, which is reportedly adding support for personal wifi hotspots. There's not much we know about it yet, but expect the information to start rolling in, because the update is now available to developers in its beta form.
This one looks to be adding in AirPlay functionality to Apps, which may make for something similar to the iPad/iPhone controller setup we saw a while back. Along with iOS 4.3, Apple is releasing software for Apple TV that will allow for developer testing of the AirPlay functions.
Right now, there is nothing indicating the addition of the personal hotspots on the website, of course that can all change as updates are issued.