Doesn't anyone just use wifi tether anymore? Since you have to root for any of them to work, I've always found wifi tether works well without problems.
Is "wifi tether" an app, or some feature already on your phone?
I have an LG Intuition, and it has VZW's tethering hotspot app, but that just triggers a demand to get that extra $30 "option". I have tried Foxfi (paid PDAnet for unlocking) on both rooted and unrooted modes (just did full factory reset to go back to unrooted since I got it after rooting, and they claim "no point" in using it on rooted phone), but not able to activate wifi either way. My son has used Foxfi with his old Droid X (GingerBread, unrooted) with no problem, so it seems maybe ICS is locking out Foxfi.
Although the Foxfi message for failing to activate wifi says to use USB or Bluetooth instead, those seem to require the PDAnet client on a Windows PC, but I am trying to use it for an Archos ICS g9 80 tablet (worked fine with BT on old VZW XV6900 with Internet Connection Sharing - old meaning of "ICS"

), but after pairing, I get no connection. I opened a case with June Fabrics, but after I explained it in more detailed response to their support email, they have not responded for several days.
The linux PC (Mint 9) fails with the USB connection (no BT hardware) although it sees the connection and wants me to go through the Network Manager's broadband setup, but that appears to be a DUN type connection that will "alert" VZW to what I am doing, and trigger the add-on package demand again I think. I pay them $175 a month for 2 smartphones, and a feature phone as it is - not interested in even more fattening of VZW's hefty profits (Q1 reports of those seem quite hefty indeed).
I never had this kind of trouble with WinMo phones with WMwifirouter or ICS/BT - they "just worked". About ready to go back to one of those, but giving up the rest of the Android ecosystem makes me reluctant...
TIA - any pointers will be appreciated. SVTP with rooting?