I am going to be honest and admit I'm terrified what will happen to Android when the iPhone hits VZW. We all have to be rational here: As someone else here posted, many VZW Droid-line users really want an iPhone. Hell, I did, too, but am on a VZW family plan. I got my first Droid and will most likely not be switching to the iPhone, especially from my Droid X, but what about everyone else? It's the iPhone for God's sake...everyone wants one...well, everyone who isn't on a Droid forum.
Android is going to lose a lot of marketshare. That's a fact. Verizon is going to push the iPhone like no other. They know that it's the iPhone, not the Droids, that will kill At&t. If it's 4G/LTE, we are ****ed.
Google needs to debut Gingerbread, and FAST. It has to be what everyone is "saying" it will be: a UI overhaul that makes it look very user-friendly. Sure, WE know what to do with an Android phone, but the average consumer barely knows how to customize the homescreen. Google really really really needs to hit 3.0 out of the park.
Either way, I'll say 1/3 of Android users on VZW will switch to the iPhone. Especially if Verizon makes a deal like the did on the Droid X: "Upgrade TODAY if you have an upgrade available at all this year".
I still hear that's December but no official word on that. Personally I would take 2.5 on my X now if possible