Apple has just announced a new iPhone 4 hardware revision that allows it to be used on CDMA networks.
[photo stolen from Ars Technica]
Interestingly, the new iPhone comes with a Personal Hotspot preference that allows it to share its 3G connection over WiFi. Ars Technica has photos of the new preference menus. I must stress the photos shown here were not taken by me.
Of course the Android people have had this for a while (provided their phones could be updated to Froyo). They called it the Portable Wi-Fi hotspot.
I hope Apple rolls this out to the rest of the iPhone users, and hopefully if it isn’t enabled by default, it will have some secret pref that allows it to be activated easily.