Amy,
I agree with you. Early exposure to technology is not a bad thing, but there is a danger in overexposure.
I hear politicians and even educators talk about how important it is to put computers or iPads into the hands of children as young as five. I think they are terribly misguided.
Computers are like telephones and other technology that children will learn to use in any case. Millions of children have access to computers from birth. Even children whose caretakers cannot afford home computers have access to them at public libraries and community centers. There's no danger that school children who do not start using computers for school work until the fourth or fifth grade won't be able to hit the ground running with them.
There IS a danger that excessive computer use by young children will prevent them from mastering physical and mental learning skills and the emotional acquisition of empathy.
I've read that some high-priced private schools delay classroom computer use until Grade 6.
My own view is that pre-shcoolers and students K-3 are better served being immersed in language and hands-on activities like drawing, handwriting, crafting, and gardening--activities that enable them to perfect fine motor skills and require them to interact with other children, adults, animals, and the Earth.
Computers are marvelous tools. I wouldn't want to be without mine, but human beings need to know how to function without them.