This is based on a popular Wired.com blog, and while it's easy to see why that - and the idea of pooling great, technologically assisted ideas for children - might have seemed an appealing starting point for a book, the result is - once one gets past the nice cover design and so on - decidedly under-powered.
On the one hand, there just aren't that many "projects and activities" and, of those there, some are great - attaching lightweight LEDs to a kite for night flying and using remote-control cars covered in Lego for reuseable demolition derby races - but many others - for example, a Dungeons and Dragons-based system for household chores, a swing that's, well, a swing but that has two interleaved phonebooks to show the wonders of friction, a light made from a stack of CDs and cuff-links made from ethernet connectors - are, if not just dull, "geeky" rather than "awesome". The suggestions also don't lend themselves particularly to further development. One wonders if the text got shredded by a host of product liability lawyers or, alternatively, if the target audience is a bit - or perhaps a couple of decades - too old.
Definitely worth looking for a more substantial, if possibly less well-formatted, experiments/etc for children guide.