I found a really cool app/guide detailing how to share the G1's internet connection with a laptop or other device via USB.
The process is a little involved but it does work, and will be worth it for anyone that's been looking for a solution for this.
Install the app on your android phone, by clicking here (from your phone browser of course)
You might have to change your settings to permit apps that don't come from the Google Market by going to your home screen and choosing MENU > Settings > Applications > Unknown Sources.
Turn USB debugging on on your phone
On your G1 go to the home screen, press MENU > Settings > Applications > Development, then enable USB debugging.
Follow the instructions here to install the Android driver - you'll need to do this on Windows & Linux but apparently not on the Mac.
Download and install the Android SDK for your computer platform. Alternatively if you are on Windows and don't want a 100 meg download, just get the ADB utility from here
Plug your phone into your computer
Choose Proxy App from your phone's menu
Press the "Start Proxy" button on your phone
Move to the directory that has the adb utility, using inside the Sdk Tools folder and run
Now you should have a proxy server running on port 8080 of your own computer that will relay the information over the Android Debug Bridge to the Proxy App which will relay it on to the internet.
Set your firefox proxy : Options > Advanced > Network > Manual Proxy Configuration
HTTP Proxy: localhost
Port: 8080
Leave the others blank
Enjoy the slow slow EDGE network, or let me know if you have glorious fast 3g coverage!
Remember to disable your proxy settings in firefox if you want to stop using your phone.
Linear Mode
