News.com reports on a new keyboard called Shark (Shorthand-Aided Rapid Keyboarding) which allow users to input text into mobile devices using a stylus to select letters on a virtual keyboard by tracing over them.
Shark is an advanced pen-based shorthand method that allows users to input words into
mobile devices by tracing them letter by letter on a virtual keyboard. Instead of
tapping independently on four virtual keys with a stylus to spell "word," for
example, consumers would put the stylus on "w" and then carve a continuous trail all
the way to "d."
....
Users initially hunt for letters to write words, but the idea is that they fairly
rapidly start to memorize the shape of common words and word components--and therefore,
their dependence on visual guidance decreases. The computer assesses the user's final
pattern, interprets it as a word from its database and turns it into text on the screen.
News.com says the fastest speeds users of Shark have reached so far are in
the 60-70 words per minute range.
A beta version of Shark can be downloaded from the IBM Alphaworks
website.
News.com 
