http://forum.ppcgeeks.com/showthread.php?t=27313
This works great on vzw 6800's and 6900's. Only thing I've seen is you have to uninstall and reinstall after a *228. Create a dialup connection with pc as
yourmdn@vzw3g.com and use vzw as password. You will need to change your DUN NAI under M.IP default profile in the ##778 menu to
yourmdn@vzw3g.com (take the dun. part out). With reasonable usage I've never had a problem without a tether pkg using 2-3gb a month.