I don't disagree that littler children might be better off with a leappad or similar however try foisting one of those on your average 10yo and you will not be taken seriously.
There is a gap in the market for devices that are quasi-adult in their format but totally suitable for pre-teen children.
When we got him the nexus, for his 10th birthday, it was against my better judgment.
My parents wanted to buy him it - it was all he talked about for months and months before that, as several of his friends had an ipod touch and he wanted to be able to discuss the various apps and games with them.
I agree a lot of it is pointless for someone his age - it is awash with shite, especially a lot of the games (he asks me every time he downloads anything - he is never alone with it for very long) and he was upset and concerned when he bought something on it that he didn't think he could/wasn't trying to buy.
THIS is my point - it almost seems set up to test our competence and our cynicism. It tricked me twice before the one where he bought something.
It just isn't user friendly - and THAT is the problem, the deliberate attempts to get you to buy stuff in any way they can, even using fairly devious means.
I admit I have hated the nexus from the start and am considering taking it away completely - though I don't know what I'd do with it, I don't want it for myself either after my experiences with google.
Anyway as the thread is indeed about a 7yo child I will leave you to it but just thought another perspective might be interesting to some.
And if anyone can link to anything that a 10yo would embrace in this field then please do so...!