I came across this because I am trying to install nitdroid (android for n800). I thought this was a problem with the nitdroid but I guess not.
I keep getting the "Error claiming usb interface:device or resource busy"
I have tried different usb ports, no hubs involved. I have used the modprobe -r cdc_phonet and also the rmmods that you suggested here, and I am still getting the same error.
Anyone have any other information that might be helpful?
And also I am wondering if I could use the windows flasher instead of the linux one? As long as it points to the same file? Has anyone seen a difference with the two?