There are a couple of styluses that do that, with an offset to the tip, so I quess it could be done. Since the new Prokeyboard for iOS is available, any key can be done. They do have cursor keys on that keyboard. If you sweep back and forth on the space bar, the cursors mover back and forth as well. If the danger thing only worked with Apple's correction and shortcuts, it would be great. I'd get used to the tight spacing, but it doesn't, at least, not yet.