I use Caribu with my 6 year old granddaughter, we sometimes spend an hour or so reading, colouring in and just chatting about the activity we are doing, the choice of books is a bit American, and there are lots that are for a young age group, may try those with the 2 year olds soon. In the past we ordered the same books from Book Depository (free worldwide postage) and read those together on Skype. I have a friend who plays hide and seek on Skype - her DD has the ipad and hides somewhere in the house 'with Nanny' and the children race around searching for them! Apparently causes much hilarity!