hello, first of all warm regards to roni. I am so glad to know that you have concern for visually handicap people. and as some one commented on this thread that I am extremely tallented, well, im just an ordinary kernel hacker and a programmer like many of you. nothing extra ordinary about me. all I try to do is to help others. now not waisting the email space, to the point *smile* Mr. Roni and Himendra Jain, as the list knows I have already been working on embedded technologies and particularly for blind community. this project is a social brilliance. I claim that this will be a success and one part of the dreem of his exelency Dr. A.P.J Abdul Kalam of making India a developed nation. now the two major aspects of this project are firstly the mind set and the conceptualisation of the blind people. from my own experience as a blind person, I can say that we first need to understand how a blind person forms a mentel picture of any thing around him. this includes the area around him. we need to know how and what kind of verbal communication will guide him accurately. although off the topic I will give you one example. being blind I climb mountains along with sited people. and there is a particular protocol in which I tought my friends to direct me. some similar kind of research needs to be done to understand how blind people coordinate visual objects and their relative placements with the help of speach. for example when I listen to cricket commentary on radio, I find it easy to even understand the field placement of the balling team. second is how we adopt the technology to this. one major aspect is that mobile phones can be used. yes that is ture but remember a blind person already carries soem thing else with him, his walking stick. we can have the unit attached to the stick itself. and talking about add-ons again some brillient person smartly pointed out on this thread that even it is useful for sited people. it is absolutely the right idea and will give further waitage to the project. I will be meeting our vice chief minister R.R. Patil today. and I also have a meeting with Dr. Nagarjuna. I am going to put this matter across to who ever is ready to provide resources including but not limited to funds. Mr. Roni and Mr. Jain, Please awaite my private emails because there are some things I will like to talk off the list. thanking all. Krishnakant.