The DIY Car Computer vs. the iPad

Julie188 writes "Auto dealers are selling infotainment systems at a nice fat profit, but if you know your way around a motherboard and power supply you can rip out your car stereo and replace it with a do-it-yourself touchscreen PC, complete with DVD, GPS, TV, Bluetooth, Wi-Fi, MP3, and Internet surfing. The question is, is that even worth the bother? Or is it better to bolt a mount into the car for an iPad or a Galaxy tablet and call it good?"