iPad 2 with wifi+3g, im not using a data plan though, only reason I got the 3g option is because it has a GPS chip in it. wifi model does not, so when it is docked in my truck, once I jailbreak it and get the $150 tomtom app for free, I'll be able to tether the internet from my iPhone 5 to it, thus giving me turn by turn navigation..
mix of both, i really want to clean the truck up, and make it atleast somewhat show worthy, the interior is about to change durastically once I get back to Dallas for Thanksgiving and Christmas break (I'm in college in Oklahoma) I will be redoing the doors, along with doing the sub box, and making an armrest built into it, the box/center console will house the gain control for my sub amp, voltage meter, maybe a SMD meter or two, and this
EQ molded into my old center consoles cup holder
but at the end of the day, the truck will be my DD..