[btym]

I don't see the point... QWERTY is great for touch screens, for the same reason it was great for typewriters: common letter combinations are spaced out. Typing with two thumbs on a small screen is comfortable due to greater space between keys and high rate of alternating hands.

[papaly1983]

I understand your point but it is not only about speed..but ergonomoics, key size and most importantly you can type just with one thumb and let the second hand free..!!