I too agree with Alex that littleBits seems to move focus back to school and youngsters, but I don't think that's a good idea.
I introduced my daughter Yuziana to littleBits, with a Kit as present for her 3rd birthday. The reason for this was to give her the idea that any thing she sees and uses isn't an intimidating 'black box', but a simple 'shoe box' filled with littleBits. So, playing with littleBits replaced a potential 'fear' for technology with a love of technology.
Those littleBits sure inspired Yuziana's creativity, and we made quite a lot of interesting contraptions. But now, after playing with littleBits for about one year, we hit the limits of the system. Yuziana 'invents' all kind of things that can't be build with littleBits anymore.
For instance: we couldn't get a 'Book of Monsters' for the Harry Potter challenge functioning correctly, due to all kinds of interferences between littleBits servos and the Arduino bit. Yuziana and I worked on it for weeks, and it looked really fantastic, but I didn't do what Yuziana wanted it to do.
And we also couldn't build a cardboard robot arm, because of the low - only 6 bits !?! - resolution of the littleBits servos, and - again - interferences.
We only just managed to get the Dancing Disco Robot working, with a high power USB supply, and elastic bands to dampen the almost always oscillating littleBits servos...
The last few months with littleBits were very frustrating, and I therefore decided to switch from littleBits to standard Arduino boards, servos and sensors.
So, why don't I think it's a good idea to focus littleBits more to schools and youngsters? Well, that's because littleBits is - and becomes much more - about engineering than inventing. It's an educational tool to teach kids how certain inputs (sensors, buttons, sliders, ...) and outputs (leds, buzzers, servos, ...) work. It may inspire some 'inventions', but it sure can't keep up with the unlimited creative minds of kids.
Summarizing: littleBits can educate kids about the basics of electronics, but it limits their creativity.