User: YucatanLiquorStand

2 hours to wifi hotspot in your pocket

On: Tethering Is Exhilarating (With the Nexus One)

This will get you up and running with USB tethering - the only downside is that I don't see Cyanogenmod supporting multi-touch: http://wiki.cyanogenmod.com/index.php/Full_Update_Guide_-_Nexus_One_Firmware_to_CyanogenMod then custom compile and setup busybox, dropbear, ssh, etc. Not too difficult if you can read man pages and use 'vi'.