Are you looking for a replacement soft keyboard?
Or are you looking for a tool that will allow you to create a keyboard without having to create it with java and the android sdk?
Did you ever find a customized keyboard for the ET1?
I have a customer who primarily uses numeric input and would prefer a number pad type keyboard.
If they are using a web app or some other app that uses the browser for UI (like Rho), they could define the input field as a number. That will automatically pop up a numeric keyboard on an Android device.
<input type="number" .. instead of
<input type="text" ..