I think that people could type faster if they have a "real" letter layout then that "boxed" layout currently available on BB virtual keyboard. I know that there are people who share my opinion on this and hopefully someone with enough knowledge to make a BB application that could replace official/original virtual keyboard in BB Storm devices.
This utility is tested on BB Storm 2 9520 with OS 5.0, but other devices might also give a try...
It is also very simple and have only basic functionality - working keys: letters, space, backspace, return (writes _ underline sign instead of a new line).
Keep in mind that this utility doesn't implements none of inteligence that iPhone text input software have, so it's sure that you'll be having "low" experience - it's just here to demonstrate typing speed with different layout.
Usage recommendations/requirements: