I think you ABU to think it is ridiculous, it would be ridiculous not to allow a child at some time to use technology, whether that be an Ipad, Ipod or computer in the home.
Whether we like it or not times have change and interactive games and learning are going to be with us for some time, they are used daily in the classroom. Whilst parents say they buy children these things and if they can afford them, why not, ultimately it should be and usually is, parents who control their use, just the same as we may with toys, or playing any game repetitively again and again. We don't allow our children (well most of us), to watch TV, Eat rubbish/ sweet or play computer games (delete which ever appropriate), all the time either.
Children at Nursery will be working on 'mouse' skills, clicking, dragging and selecting, some will and if not at nursery in Reception, will be using touch technology, by way of ipads and interactive white boards. It isn't necessarily bad, as a lot of people have said, their children have learned from these Apps. and they have been a useful tool at times of travel or just where it would be helpful for your child to sit quietly and concentrate for a short time.
My dd is 8 this weekend and already has an Ipod, she uses it ocassionally, not constantly, no big deal, she knows she can pick it up and put it down when she likes. She spends more hours playing with her plastic animals, recreating stories, plays, TV programmes with them too, she builds dens in the garden and has a very active imagination, we walk dogs twice a day, go horse riding and do lots of other things which are fun and interesting, including playing games on the Wii once in a while.
I am contemplating buying her an Ipad to use this weekend - not exclusively (I fancy one being around too), but last night she had to use the computer for homework to find out about the Romans. Laptop has to be found, logged on, set up, taking room on the table, to be able to reach for an ipad and easily go to what we wanted to do and take notes, would be far easier than juggling a keyboard and paper and mouse/pad.
Ridiculous? I don't think so.