This is their "I'm a Mac" series. I see no real difference here. The problem is that the surface rt < iPad, in more ways than just price.
I still don't see how people figure that. I would rather have a Surface any day of the week - it is actually a useful device that can create files, in a known Office package, save them to a familiar file system rather than a failed online service, and transfer them directly via a USB stick as people are used to.
One can also put files onto the device in the same way, including many video formats that play natively. By comparison when people ask me, "can you put that on my iPad?" I have to say, "I have no idea." With no USB and no visible file system, I find myself at a loss. Maybe through iTunes?