A Japanese company called TechFirm has released a new Twitter client for the iPad with a novel–and useful–application. “Breath Bird” allows handicapped users to Tweet using nothing but their breath, allowing those with minimal use of their hands–or even their voices–to plug characters into their Twitter feeds using the microphone on the iPad.

The fundamentals are simple. Open the app and the user’s timeline appears on the left. A large keyboard–not a QWERTY keyboard, but an alphabetic one with characters arranged in a five-by-six grid–and a text field opens on the right hand side of the screen.

When a user wants to tweet, the rows of characters start to highlight in succession, from top to bottom. When the row containing the character the user wants is highlighted, he or she breathes into the iPad microphone. The characters in that row then begin to highlight in succession, left to right. Another breath when the proper character is highlighted drops that letter into the text field.