Thought I would post my "report" of how it went on Saturday.
It was a warm day but started off cool (as in not hot...I was fine in shorts and a t-shirt).
I utilized my Moby Wrap most of the day. We had our stroller there as our "push cart" as well as a backup for my 4.5 year old when she zonked out at the end of the day.
Baby was fine most of the day in the Moby...didn't seem to be bothered by teh heat when we were in it. He is prone to heat rash and portions of his rash at birth haven't gone away yet....he did flare up just like he does at home, but I had his Burt's Bee's Baby powder and made sure to put some on when needed.
I did not utilize the baby care station at EPCOT--so no idea how that is. We were able to walk and nurse in the Moby. I had brought along my Mei Tai to try that out--I nursed for a bit in that..but just didn't have the proper positioning for upright nursing since my son is still small and doesn't have muscle control yet. So that hurt my back. Did a quick switch to the Moby and all was fine.
Truth be told my legs and feet were achy by the end of the day. I had just ordered
Crocs and hadn't gotten them yet and my usual shoe of choice had broken (skecher's flip flops purchased with the wonderful sale codes posted on the budget boards). So I was in my Gap Birkenstock wannabes. Was fine for about half the day and then

.
By the end of the day being on my feet for 9 hours with Baby and not resting did take its toll..but it was in much more pain and achiness when still pregnant with him at 7-8 months when at EPCOT..so this was a VAST improvement.
We did spend much of the day in teh Land (worked out to about 4 or 5 hours between baby swaps and having lunch).
We did see on the Boatride in Mexico a family with a newborn and they had me beat. There newborn was 2.5 weeks old and was sleeping peacefully in his car seat. Mom and dad brought him along with the grandparents. Very cute family, though I don't know if they were there all day as mom looked GREAT!!! (as in didn't look like she had spent 7 hours at EPCOT).
It was all quite doable.
I've now gotta figure a way to repack the diaperbag as we had wayyy too much stuff. But we just didn't want to be caught unprepared.
I did by a UV cover or the stroller by Kidpottamus (or something like that). It provided added shade on teh stroller as well as blocking 98 or 99% of the UV rays.
I personally don't think it was that humid yesterday....so of course the feel will be different when it is. But we must have felt great b/c we uninentionally did quite a bit.