Hi Bonna, That's a very interesting article. Unfortunately I am one of the totally blind and can see nothing at all. So it won't be good for me. But I have just bought a mini guide.You hold it in your hand and it vibrates when it hits an object. It is really meant for white Cain users or guide dog users. As I am in a wheel chair I use it for telling me what's around me. For example. I was sat outside my club the other day not having any idea what was around me. With the mini guide I was able to draw a picture of what was around me. When someone came out I told them what I could see and they said it was perfectly right. And if you drop anything on the floor it will find it for you. I threw a little bunch of keys on the floor and it found them straight away. Without it I could have been looking for a week and not found them. love Malcolm. xxxx. Hyde, Cheshire, skype name, malcolmbo1 You Said. Hi Folks I thought you might find the attached article of some interest. Take care Cheers Bonner