Apparently tethering was included in the update/ new phone, but "hidden." My modem took a dump last night, so I'm glad someone told me about this day before yesterday.
To unlock tethering, visit this site via the phone:
help.BenM.at (the site doesn't show the URL-- you'll need to type it as the actual URL appears, not this link)
At the middle of that page, click "Mobile Config: Install" & then pick your country.
From there, hit install, let it run, & then go to settings/ general/ network/ internet tethering & then select either USB or bluetooth.
I'm really impressed with the speed. Even when watching videos, it's barely slower than wifi.