Interesting, my travel agent with Dreams Unlimited is saying no, there are none available in the resort...do you know the hours of the pepper market. We plan on having some food delivered to our room from that grocery store that delivers, but would like to be able to heat some stuff up...I'm sure we will have late night munchies once we come back from the parks, and don't want to have to rely on room service!
I would call and find out if you can get one. Depending on your room location going over to the Pepper Market to use the microwave may not be worth it.
Again, a DIS'er recently posted that he was able to get one for his room. They were available on a first come, first serve basis. They can not be held for your arrival. You can also rent one from ababy'sbestfriend.com