Just wondering why sabyon doesn't have usb_modeswitch not available in SpinBase. I went through hard time connecting to internet after installing SpinBase. I don't have wired ADSL or WIFI, I only have EVDO usb device to connect with internet.
I solved by manually downloading .tbz2 file from packages.sabayon.org
and install it through 'equo'. This one requires 'tcl', so I had downloaded that one also, manually, from this place
So, It will be helpful If sabayon have usb_modeswitch as one of its basic package.