When I first got my Nexus One, I downloaded both EasyTether and PdaNet and they worked great. But after resetting my phone to sign up with my other gmail email address, I noticed neither one was there.
If you have a Nexus One on AT&T also, you probably don't see either of these apps in the market either. So how do you download them? Take your SIM card out. Connect to wifi and go back into the market after turning your phone back on and you'll see PdaNet, EasyTether, wifi tether for root users, and there may be a few more, all there. After you download them, just put your SIM card back in your phone and tethering should work fine.
Hope this helps any of you who couldn't find any tethering apps in the market.
If you have a Nexus One on AT&T also, you probably don't see either of these apps in the market either. So how do you download them? Take your SIM card out. Connect to wifi and go back into the market after turning your phone back on and you'll see PdaNet, EasyTether, wifi tether for root users, and there may be a few more, all there. After you download them, just put your SIM card back in your phone and tethering should work fine.
Hope this helps any of you who couldn't find any tethering apps in the market.