I'm confused... My Motorola Droid (US version of the Milestone) is running 2.1, and I have the option for voice input on all text fields. On the virtual keyboard, just to the left of the space bar (where the comma was in version 2.0) there is a microphone key that enables voice input. Of course, you have to press the key to call it, so I am not sure how good that would be for blind people, but the functionality is certainly there to leverage.
If you haven't already found it, this page might help:
Speech Input | Android Developers
There is a sample app on that page that calls voice input.
Hope this helps.