This article:
http://www.sunday-times.co.uk/news/p...enws03005.html
cites a study (small, though) that seems to indicate using computers at a young age is very good for kids' brains, as long as it's not to excess. Believe it or not, most kids whose data were collected for the study actually socialize more and play more sports, etc. than kids who just "make do" with reading and television!