Regarding the three changes… The good news is, Verizon iPhone will come with a mobile Wi-Fi hotspot. Meaning, up to 5 devices will be able to connect to the Verizon data network through your Verizon iPhone using its built-in WiFi. A similar feature for Android-based smartphones costs $20 per month but price for the iPhone hotspot has not been revealed yet.
With AT&T you can get a tethered data plan for $45 a month which is only a one-to-one connection, and not one-to-five as the Verizon.
The bad news, regarding the changes, is that Verizon’s CDMA network can’t handle data and voice simultaneously. So if you’re using a data connection, phone calls will go to voice mail. Likewise, if you’re on a call with somebody, you can’t just load up the browser and go to a website to look something up. This is because of Verizon, not the iPhone, mind you.
And the weird news regarding the third change, is how Apple apparently changed the antenna design… is this because of CDMA or because Apple themselves also believe there was (is?) a problem with the iPhone 4 antenna…? Even worse, Apple changed the placement of the mute switch and the volume buttons, so good luck getting your iPhone 4 case accessories to fit your Verizon iPhone.
More information & side-by-side images can be found here.
Finally, Verizon iPhone is running iOS 4.2.5. Not sure what the differences are, but I’m hoping that when iOS 4.2.5 arrives on the “normal” iPhone 4, that we will have Wi-Fi hotspot as well.