My phone is rooted and I'm running a custom Android 2.2 rom from Team Whiskey. I just found out that the Tether Widget app I got from the Amazon App Store works only until I reboot. If I remove the widget from my home screen and then reenable the widget after a reboot it works again. Can't seem to get the widget to work without doing this. This is the only app/widget I have found that works with my Touchpad running WebOs. I have no problem with this as I am not a big widget fan. This widget has no settings that I have found, it just works. I don't tether my phone to my Touchpad much so this is not a problem. I can enable the widget when I want to tether. Just good to know I have this when I need it.
TMobile Samsung Vibrant with TMobile 2.2 Update
HP Touchpad 32 GB
Motorola Xoom 32 GB (Wife's)