The LightUp electronics learning kit just launched on KickStarter In a nutshell, it's like the marriage of snap-together electronics (like SnapCircuits) and smartphone/tablet-based augmented reality.
If it was just the "snapcircuit" part, this wouldn't be so interesting. But being able to build a circuit by hand, and then having an AR view of your circuit working is a pretty nifty feature. I backed it so that I can share it with the boys (the older one is particularly interested in electronics).
Give them a look!
Oh, and if you're at Maker Faire this weekend, they will be there to show it off!