I went from a stock 1.5 to 2.1 using the Sprint 2.1 RUU and all is well. I understand it's a dev build and as such is already root but when I trying installing android-wifi-tether (both 2.0 and 1.6) it all looks well except when I touch the icon to start and it fails. The 1.6 version did report I didn't have root. What do I need to do in ADB/shell to ensure the proper permissions are there for AWT? This is the last thing I want to get working and I'm happy. Do I need to remount the filesystem as rw? Add superuser? Not sure what's needed. Please help.