I personally am looking forward to something like a swype keyboard that you have on Android phone. Once you use it, it is amazing. Any other keyboard features you are looking forward to in iOS6 this coming Fall?
My first smartphones were androids and I learned Swype (took a bit to get used to). As a consequence, I now type on my iPhone/iPad with only one finger instead of two thumbs. I really liked Swype and would like to see it in iOS6. But the iPhone/iPad keyboards are so sensitive that you don't even have to actually touch it (just hover really close) for it to pick up the signal, especially when going fast - so it's not too far different as it is.
The iphone keyboard is near flawless. I've tried all different types of stock os keyboards but apple's own always comes on top. The closes thing to it is meego's keyboard. Swift Key would be in the running but I'm typing on my Galaxy Note now and it's lag city.