Why laptop? (Score 1)

IMHO, most laptops are too fragile or dangerous for kids (small parts, heavy weight) and too expensive for parents. And they are not ergonomic - small keys and touchpads are not suitable for children, regular mice / keyboards are better. Then my son was about 2 years old, I just installed for him an old computer (PIII 800MHz) with Edubuntu. Edubuntu comes with excellent GCompris education suite, which also contains activities suitable for 2-3 year old children. Make sure to pick a small enough mouse, and simple keyboard (without all small multimedia keys, in other words, old one).