I think you completely don't get the appeal of either Surface tablet.
This is how I see it:
The killer app for the Surface RT is MS Office. This is because getting work done on an iPad is a miserable, miserable experience. If I were going off to college today, there's no way my only computer could be an iPad, typing anything much longer than a tweet is going to be painful.
No matter what, even the touch keyboard is going to be a much better experience than a virtual keyboard. (Who wants to have half your screen taken up with a keyboard when you're trying to write a term paper?) iOS will never have cursor support so the trackpad is a differentiating feature (since I don't have to reach up and touch the screen to move the cursor, which can be a fiddly experience vs. moving the cursor with a trackpad)
This is why I think they will pack the keyboard case in with the Surface RT. It's to enable the killer app for the Surface.
So, maybe we'll see. Perhaps you still think MS Office is a niche product and no one needs simultaneous keyboard and touch interfaces. I think you might be surprised, though.