sure - you can turn your PC/Mac into a wireless hotspot for internet sharing, but that is not the point. A typical household will have internet by cable/dsl and will be able to use a typical wireless access point. The Mifi (or other similar devices) are for the travelers and business people. When it comes to internet access everywhere where you have GSM (3G) coverage. What is the point turning on my pc/mac, enable internet sharing and then turn on my iPad to surf the web??? (ok, I can leave my PC and sit on my sofa).... But on my MacBook Pro I would have tabbed browsing, multitasking, etc. so by any means - more comfort. And this won't change until Apple releases iPad OS 4.0. And when it comes to traveling, you still could use a built-in 3G-modem, or a 3G-stick. BUT both will drain the battery of your main device. NOT with a Mifi-device, as wireless usage typically has not a very big influence on the battery life. In comparison for my MacBook Pro 15" - 2.66GHz: Battery life: only Wifi: 5.5 hours 3G stick: 2.5 hours Mifi battery life: 5 hours.