Advice on teaching programming to children

I just wondered if there might be any other parents here that have given it ago! I've heard Raspberry and Scratch can be taught from the age of 4!!! (Seriously!!! :O)

My daughters only 3 but i'm hoping that she might follow after me to give her self a early start in career development but I started from 6 in computers, where as shes already worked out how to play games on these apps on the iPad..

If there are any parent developers, where do you start with teaching programming to a young age? I mean I started on from Neopets and that's where I started HTML and CSS. I would not teach her unless she had a genuine interest, shes only just fully got the alphabet down and already keeps trying to jump on my laptop to type..

Whats your thoughts?