YouMeUs: I agree, and I also think it's what the OP was getting at. I've also noticed a great increase of texters in public, at restaurants and even in the theaters. In general, I think most of them (younger kids) have free reigns and very little restrictions with cell/text phones these days. Manners may be decreasing while technology increases. I'd suppose it mainly depends on the parents there.
I know exactly what you are saying, but I see it as just toys they are fascinated with, and a bit of addiction, and it gives them opportunity to be involved with the world on different levels, but it doesn't mean that it replaces actual human communication. That is still here.
Yes, a lot depends on how kids are being brought up in a family, but wasn't it always the case?