Anyone game to make a cable that would connect my Nextel i710 to my Treo 600.

The Nextel i710 has a GPS built in, I would like to use that GPS with maps on my Treo 600. The i710 uses the NMEA-0183 format with GGA, GLL, GSA, GSV, RMC and VTG sentences.

Does Mapopolis support NMEA 3.0 ? That is the map type that the Nextel supports.