By Walter C. Jerry Mobile broadband refers to high-speed internet access on portable devices like cellular phones and laptops through wireless cell phone networks. With this, you are not limited to your own home internet or even Wi-Fi spots. You can access the internet anytime even in the car. It is perfect for businesspeople and others who travel often. There are several different ways to get mobile broadband. Defining Broadband Broadband networks are called 3G networks, also known as third generation networks, and are provided by all major cell phone providers. You can choose from several forms of technology to connect you to the internet. PC Cards, also called Air Cards, can be hooked into PC card slots or a USB port depending on what type you buy. Some newer laptops are even equipped with built in PC Cards. These cards usually cost between $50 and $200, but some providers will give you a discount or even provide them free of charge when you sign up for a mobile broadband servi...