Assuming you are running Android 2.2 or later, you should have a wireless hotspot capability on the phone. You configure it with an SSID and optional security (WEP/WPA) with passphrase. Then, up to 5 computers can use the phone as a WiFi access point. I've done that with my 3g Nexus One, and it works very well. It was like having a 2mbps DSL internet connection. Web browsing was snappy, and YouTube videos played without excessive buffering.