i-Blason's ArmorBox Kido Series for iPad mini ($28) strikes us as a cool concept, with a number of peculiarities. It's specifically aimed at kids, and is in the same space as cases such as Speck's iGuy. Like that model, this one is made of a foam material. Despite the company's claims of "poly-carbonate" and silicone materials, there's no evidence of either. The case doesn't have quite as much give as we'd expect, but a tall slot along the back can…