I'm very happy to see Nokia making an effort to add accessibility features to it's phones.
I use an N95 with code factory's Mobile Speak and Mobile Magnifier software.
While I can see the Braille Reader helping death-blind people, I don't think it's a good solution for the blind or visually impaired.
The concept seems to boil down to sending 6 dot Morse-Code via vibration.
I find it hard to imagine the amount of concentration and time it'll take to read text this way.
Why not simply use a TTS to read the message aloud?
Many Nokia phones already have this capability.
If you happen not to wish your messages to be spoken aloud in public, use headphones.
I don't mean to be rude or put you down, the death-blind community is rejoicing, but for the blind and visually impaired this is a step in the wrong direction.
Text to Speech requires no special training in braille, or the high concentration level required to follow Morse-Code.
I don't want to say the A word here, but the iPhone 3G S seems to have a much more constructive approach to making touch screens accessible.