I think it is a great idea, although I wont buy one as I am a little passed it to be honest.
If you are older, you would probably just download the Android or iOS SDK and have a play with that instead? As mentioned above, this is aimed at the education market to get back to basics of computing.
I had parents evening at my daughters school the other day and 'ICT' just consists of using in my opinion out-of-date software. No understandig of networking, how computers actually work etc... I moaned for quite a bit and even offered to come in and teach those bits if they can't do it themselves ...