I received my Juice Pack Air and I'm generally impressed. It allows me to get more than 8 hours of constant use of my phone including data intensive things. It is much smaller than a different battery/case I looked at in the Apple Store and I can still slide it in and out of my back pocket. I really miss the neoprene nature of my iSkin case and am not comfortable with the front being flush, but I'm guessing I'll get used to it. I haven't seen significant interference with my reception yet either, but by the nature of the thing, I'm almost certain there is some. My issue is charging the thing. When my phone is inside the case, charging it requires a micro-USB cable rather than the 30-pin charger. The case came with one, but I'm accustomed to charging my phone in the car and at work as well, so I want to order additional cables. I found a listing for the cable on the Mophie site, http://www.mophie.com/products/micro-usb-cable, but it is backordered (and I don't think I need to get a cable from them anyway). My question is: which micro-USB is this? It looks like there are plug types A, B, and AB. Can someone tell me which kind this is so I make sure I order the right ones? THanks for your help!