Hi guys, if I can get my hands on an OTG adapter I'd definitely like to test this on my N800 with a couple of the USB Sprint adapters we have laying around at work. I'll post back at some point when I get a chance.

EDIT:

Just thought I'd mention I have used Novatel Wireless cards from Sprint in Linux before, using the directions posted above as a guideline. Both the S720 and the EX720 with an adapter work great.