A California appeals court today ruled that reading maps on your cellphone while driving is legal, clarifying a state law that previously prohibited the practice, and setting a precedent for future legislative revisions. In a late-afternoon ruling, the 5th District Court of Appeal said the states law, which does not allow drivers to use cellphones without a hands-free device, does not apply to software thats telling people where to go. Californias distraction-free driving laws went into effect in 2009 targeting text messaging, and required that law enforcement officers make a visual confirmation of what that driver is doing with their phone before issuing citations.