Wow - glad I stumbled upon this thread! I was just getting ready to go back and try Swype to see how it stacked up against SwiftKey Flow. Like the OP I have been 'test driving' SKF since the first beta and I like it but there are limitations.
But I've just spent a half hour installing and configuring Kii and I'm impressed initially. The one thing I have not been able to accomplish is to change the color of the alternate keys. And they are so small they are very hard to see and I have pretty good vision. If I could change to a brighter color it would be helpful. Any ideas?