According to the schematics, Apple also envisioned a wireless communication protocol, and a secondary power input for portable solar panels (and other -less reliable- electric sources). This could be a great product and it is probably one more reason for Apple to have engaged (and won) a legal battle with the creators of HyperMac. With a tight control over the SafeMag power connector, Apple should not have difficulties winning the battery accessory battle if it decides to commercialize the idea. The question is: how big is it going to be? It’s doubtful that Apple can double the battery life without an enormous size increase of the power-supply/battery, but would a 50% increase in battery life be good enough for you? Also, what should this be priced? A “normal” Apple power supply is already quite expensive, so what will happen if a good chunk of Lithium-polymer is added to the bill of material (BOM)?