I am definitely getting input from as many people as I can. Within a month, I'm going to start working with my potential users and their caretakers so that'll be real feedback.

I'm targeting http://ktype.net/wiki/research:disabilities which prevent people from talking or using a keyboard - Stephen Hawkings of the world as well as autistic children with major speech problems. There are many existing solutions out there to help people with disabilities but there are also very wide gaps in between. I'm trying to catalog everything I can find to help fill in the gaps and I will make my own bridges if necessary.

The new keyboard is an iPad app (Demo: http://ktype.net/wiki/dev:demo ) and it will be extremely customizable. On the iPad itself, you can already define your own keys/layout: http://ktype.net/wiki/research:articles:progress_20110204

Additionally, I'm working on a vastly better auto-suggest feature: http://ktype.net/wiki/research:articles:progress_20110209 than a cellphone T9. Also, I want to make it work with a variety of hardware input devices. If you are a researcher making a brain-reading interface for paralyzed patients, don't hook it up to Windows! KType will learn from each user's patterns and will be customizable enough to support easy communication. I'm also going to integrate Twitter/email etc. soon enough - http://ktype.net/wiki/dev:roadmap

Don't get me started I can keep talking about this 24/7 :)