If you are comfortable with it, please update the WIKI with your verified findings.
The GPS portion of the BCD996T WIKI is Here
I haven't tested it as I don't have the scanner yet, but the Motorola i730's GPS works perfectly (I just downloaded the latest software version) and, from the user's manual: "Using GPS with Map Software
You can use the GPS feature of your handset to
provide approximate location data to a laptop
computer or similar device that is running interactive
map software such as that made by DeLorme or
Microsoft. This way, if your handset has good access
to GPS signals, your approximate position on a map
can be made availableasyou travelin avehicle.
To do this, connect your handset to your laptop (or
other device) with a data cable and set your handset
to transmit data (see “Getting Started” on page 75).
Your handset then provides your approximate
location to the device running the map software,
which displays your location on a map. Your handset
provides an updated location every second and the
map software displays your changing location on its
See “Enhancing GPS Performance” on page 71
for more details on obtaining good location
Note: Because your handset is continuously
determining your location, using the GPS
feature of your handset with map software
uses the handset’s battery power quickly.
Your handset sends location information to your
laptop or other device using the standard National
Marine Electronics Association (NMEA) format. Your
handset supports output messages in NMEA- 0183
format and supports the following NMEA- 0183
sentences: GGA, GLL, GSA, GSV, RMC, and VTG.
The map software running on your laptop or other
device must support NMEA 3. 0."