Here is something to keep in mind for those planning to upgrade to the Icon. For ISIS to work you need a special ISIS compatible SIM card. ISIS uses the secure element on the SIM card so that means you may not be able to just pop your existing SIM card from your current device into the Icon. The old SIM card will still make the phone work, just not the ISIS wallet.
The Icon is probably using the smaller nano SIM now so if you're coming from the 928, you'd end up getting a new SIM card anyway, but just wanted to throw that out there for anybody buying one and just planning on using their current nano SIM (if they have an iphone 5) or cutting down their micro SIM.
It's also possible your SIM is already ISIS ready, I don't know when Verizon started shipping those. I got one with my Moto X when it launched. When I look at my Moto X recipt the item description for the SIM is 'GEM 4FF NFC SIM' I think the 'NFC' means it's ISIS, though I didn't sleep in a Holiday Inn Express last night so I could be wrong.