Through Scoobydoo from BlackberryClub, I just found out that this feature MAY be a part of BlackberryOS 4.0. I am not sure if this is limited to certain Blackberries (ie the upcoming new 7290, or if this works with 7280) or if this is definitely BlackberryModem, but there are now a few points of evidence.
There is the existence of this directory clearly suggestive of a modem:
| C:\program files\Common Files\Research In Motion\Modem Drivers |
To verify that this is indeed for USB Blackberries and not something for older serial Blackberries, I checked the files. Inside the RimSerial.inf file at the top, shows
; Virtual COM port tunnel driver |
; Copyright (c) 2004, Research in Motion, Inc.
Then, I checked Device Manager, and sure enough, a virtual COM port inside the Ports tree:[quote]
|-# Ports xxx40;COM & LPTxxx41;
| |-# Communications Port xxx40;COM1xxx41;
| |-# Communications Port xxx40;COM2xxx41;
| |-# ECP Printer Port xxx40;LPT1xxx41;
| |-# RIM Virtual Serial Port xxx40;COM6xxx41;