While Wi-Fi hot spots may be proliferating, they’re not always reliable and don’t help you much when you’re in between coverage areas. Neither do the usurious rates carriers are charging for Wi-Fi these days. When you’re in business and need Internet access while traveling there’s no substitute for an EV-DO card. Granted, the service is tad expensive, but if you need to access the Internet to make a living, an EV-DO card and service more than pays for itself.

Full story: blogs.zdnet.com