It’s a tool, it’s a tool, it’s a tool. The iPad is not going to replace teachers or ‘fix’ education.
Perhaps the most significant impact of an iPad in a classroom is the information it can provide.
Regardless of the conclusion you come to, the iPad allows an educator to collect information to provide feedback much more efficiently than any other tool.
Having a device in your hand, that is collating work by students immediately for feedback, is a very powerful tool when assessing for learning.