Maybe it takes data and voice on one radio and does the internet and etc on the other?
Read up on my post in this forum...
The TBolt does does simultaneous voice and data on both 3G and I would have to assume LTE.
The "Skins" referred to is essentially like a set of stock themes for the phone. It changes the status bar color, weather/clock, app drawer and background. (If you have used apps like ADW Launcher, you will know what I am talking about.) It isn't the most amazing feature ever, but a nice little thing to have none the less.