Over the past several days, we’ve been testing Apple’s latest gadget with four car chargers that are supposed to be iPhone-ready: Griffin’s PowerJolt ($20), XtremeMac’s InCharge Auto ($20), Macally’s USB Car Charger for iPod & iPhone ($15), and BoxWave’s VersaCharger PRO ($45/$26). All four chargers connect to your car’s cigarette lighter power adapter, and have you connect a USB-to-Dock Connector…
