Did the Wave phone work well for you? We took radios (walkie-talkies) on our last Carnival cruise and that worked well enough but the Wave phone would be a simpler option. I've heard good and bad about them so I'm just not sure how helpful they are.
My son is definitely very into the electronic gaming so I see him spending a fair amount of time at Edge. I think he will be WOWed by the look and feel of the Oceaneers Club/Lab though.
SO excited about this trip. It's a last minute one for us to celebrate my birthday and me getting the cancer free diagnosis. We're actually going to send the kiddo to school on the day we leave and pick him up a couple hours later and THEN tell him what we are doing.