Ok buddies, have been following this thread for sometime and too much have been discussed on both the sides of the coin. Enough of hitting one another, though some interesting alternatives got suggested. But, will these solutions offered match to reality ? The ideal reply to the problem is, adopt a couple of browsing centers whose owner are willing to make a try with FOSS solutions and make a pilot attempt with them
Try implementing some of the solutions offered all along this thread, but make sure that the owner of the browsing center doesn't get a blow over his face. If things seem to be getting bad, change back to old solutions and rethink. Else, if people seem to be getting used to FOSS solutions, then get a feedback from them on what kinda improvements they are looking for and try to find solutions. Ask the browsing center owner to interact with his routine clients who may mind helping him to try things out, like he can ask some of them to sit on GNU/Linux systems, use FOSS tools and give a feedback on their experience. Based on such feedbacks we can decide further.
There is no use in hitting a 100 post long thread but still not putting something into trial and checking out whether it works or not. Just words doesn't change things, they need to be accompanied with actions.