Can I point out that I, like thousands of other Brits, keep our data roaming firmly switched OFF when we're in US - otherwise we can come home to bills of hundreds, if not thousands of pounds. So, the minute we're out of the hotel or outside the park and the wifi drops out, we're cut off.
Now, I'm not someone who has her mobile welded to her hand, but if you need to check your next ADR or FP - or anything else that may be necessary (even messaging someone to say you'll meet them at X park or Y hotel), then without gobal wifi we're completely screwed.
Charging? No. Wifi? Definitely!
Oh, and for the record, I wouldn't want to be on a bus with half a dozen other
ECVs/wheelchairs. It would be impossible! Half an hour to get everyone on - never mind where anyone who wasn't either from an
ECV or their family would sit - and then you'd have to do the whole process again at the other end. That could potentially turn a 15-minute bus journey into well over an hour! It's just not worth it.
Incidentally, we saw the bendy buses everywhere in our 2015 trips. We didn't see a single one last year. Did they take them all away again?!