Piggybacking on Internet access is the practice of establishing a wireless Internet connection by using another subscriber's wireless Internet access service without the subscriber's explicit permission or knowledge. It is a legally and ethically controversial practice, with laws that vary by jurisdiction around the world. While completely outlawed or regulated in some places, it is permitted in others.

No, piggybacking on someone else's internet connection without permission is not legal in Orange County or anywhere else. It is considered a form of unauthorized access to a computer network, which is against the law.

Piggybacking, historically, meant to ride on one's back or shoulders. These days it is more apt to refer to gaining access to a restricted website or communications channel by using the session of another established user.

how to access and connect the internet?

well the difference is that portable Internet access is portable and mobile Internet access is mobile simple as that.