I have been using iPads in the classroom for a few years now. However, I always had to use my personal iPad since we didn't have enough iPads for every classroom.
Since I have changed schools, my new school has purchased enough iPads for every grade to have 6! I think that is fantastic and I make sure to utilize them whenever I can.
A few months ago we learned about Native Americans. I had the students break into groups of 2 and create a triptych about one of the 3 tribes we learned about. They then had to videotape themselves explaining their tribe. I made sure that 3 different tribes were recorded on each iPad. I then had them break into groups according to which iPad they recorded on. They watched each other's video as a review of the tribes before the test.
The kids really enjoyed this activity. I loved how excited they were when their group was up and how quiet the other kids were when listening to the other groups!