Tablet Keyboard Improvement

I love tablets but hate typing on them. The major issues are with typing, copying, pasting, etc. I think this problem can be easily fixed but nobody it working on it. For instance, cause when I select stuff with my fat fingers I can seldom hit before the right character - as such arrow keys (forward and back, possibly with a frontspace (opposite of backspace)) would be useful.

Right now the only way to correct a word is to press somewhere behind it, type in the new one and press again in front of it. we need a keyboRd that can surf the full '.text' space with keys (like Turing complete or whatever for the keyspace applied to typing) as most tablet keyboards can't navigate everywhere with keys in a text box area).

I post here hoping someone with the can-do attitude will make it happen.