Dude I think someone else has thought about it

CNA has a report of how local inventor Bob Teo has devised a new keyboard to replace the ole faithful QWERT keyboard, but there's been a whole host of alternative keyboard solutions, including the Dvorak layout that was developed in 1936. Bob might have a good product, but could someone at least mention these alternatives and why this new 'invention' goes where they haven't gone before?