Dasher

I've been watching a google tech video about Dasher, which is described as an efficient text entry system and I think its has potential.

The video describes how keyboards have very limited movement (each letter is effectively boolean - up or down) while you finger has around 14 degrees of movement, making them very inefficient match.

Mobile devices (cell-phones/PDAs) generally have to deal with this trade-offs when determining the type of text input systems they implement. Full qwerty support makes the device larger than desired; using multiple letters on one key (typically found on cell-phones) irratating to use or using a gesture system (Palms graffiti), is small but effectively you need to learn a new way to write.

Dasher seems to address all this with word predictions. All this with a simple continuous one finger gesture or an eye-tracker version.

For those with a disability, I can see this a huge step in the right direction.

Here's the download link. Go check it out.