KALQ Keyboard Map Could Allow Faster Thumb Typing
A team of researchers has developed the “touch optimized” KALQ keyboard layout that claims to offer faster touch typing on smartphones and tablets.
It shouldn’t come as much of a surprise that the standard QWERTY keyboard layout is not the best suited for touchscreen devices where users primarily just use their two thumbs. A team of researchers from Montana Tech in the U.S., St. Andrews, and the Max Planck Institute for Informatics in Germany, have jointly developed the KALQ keyboard layout that they claim will make "thumb-typing faster on touchscreen devices such as tablets and large smartphones.”
The new layout splits the keyboard into two easily reachable groups of keys that allow trained users to reach 37 words per minute with the help of an “error correction algorithm.” According to the researchers, users typing on a QWERTY keyboard scored just 20 words per minute.
Dr. Kristensson, lecturer in human computer interaction in the School of Computer Science at the University of St. Andrews, said, "We believe KALQ provides a large enough performance improvement to incentivise users to switch and benefit from faster and more comfortable typing."
The developers will present their work at the CHI 2013 conference (the ACM Conference on Human Factors in Computing Systems) in Paris on May 1. The KALQ keyboard layout will be available as a free application on Google Play in the near future.

Same with metric system in US or driving on the right in UK or manual transmissions ...
But for the most part, with a phone or a 7" tablet, swype is faster for me when I'm not actually holding my tablet.
http://outfresh.com/latest-technology/kalq-new-keyboard-layout/